Can You Use AI to Draft a Provisional Patent Application?

The short answer: AI can write a first draft of a provisional, but the draft only helps you if it discloses the invention well enough. A later non-provisional application gets the provisional’s filing date only for an invention disclosed in the provisional in the manner 35 U.S.C. 112(a) requires, other than the best mode requirement.⁷ So treat AI output as a draft, test it against that standard feature by feature, and be careful what you upload to produce it.^{10, 12}

A provisional asks for less paperwork than a non-provisional, not less disclosure: it needs a specification as prescribed by section 112(a) and a drawing as prescribed by section 113, and no claim is required.¹ AI Patent Drafting in Patsnap Eureka can build the working draft: its Invention Disclosure workflow turns rough engineering notes into a structured disclosure that highlights missing details, and its Patent Drafting workflow converts scattered invention files, notes, figures and technical references into drafting-ready context and moves from claim layout to specification and drawing descriptions.¹³ Reviewing what it produces stays with you, the inventors and your counsel.

Two timing rules apply however the draft is written. A provisional is abandoned 12 months after filing, so its date survives only through a timely non-provisional application that claims its benefit or through a conversion request, and it does not start the 20-year patent term.^{1, 4, 9}

1What a US provisional application must contain

Provisional applications may not be filed for design inventions.⁴ The rest of this guide concerns utility inventions.

The statute: a specification and a drawing

A provisional application must include a specification as prescribed by section 112(a) and a drawing as prescribed by section 113.¹ Section 112(a) calls for a written description of the invention and of the manner and process of making and using it, in “full, clear, concise, and exact terms” that enable any person skilled in the art to make and use it, and it requires the specification to set forth the best mode contemplated by the inventor or joint inventor.⁵ Section 113 asks for a drawing where necessary for the understanding of the subject matter sought to be patented.⁶

A claim, as required by subsections (b) through (e) of section 112, is not required, and the filing date is the date on which a specification, with or without claims, is received in the USPTO.¹ The USPTO adds that a filing date is accorded only when the provisional contains a written description of the invention complying with all requirements of 112(a).⁴

The rules: cover sheet, no oath, no information disclosure statement

Under 37 CFR 1.51(c), a complete provisional comprises a cover sheet, a specification as prescribed by 112(a), drawings when necessary, and the prescribed filing fee and application size fee.² The cover sheet identifies the application as provisional, the inventors and their residences, the title, the attorney or agent and docket number if applicable, the correspondence address, and any US Government agency and contract number if the invention was made under a government contract.² Under 37 CFR 1.53(c)(1) the cover sheet may be an application data sheet or a cover letter identifying the application as a provisional; otherwise the application is treated as a non-provisional application.³

The rules list an inventor’s oath or declaration among the parts of a complete non-provisional application but not among the parts of a complete provisional, and say no information disclosure statement may be filed in a provisional; the USPTO adds that a provisional is not examined.^{2, 4} That USPTO page was last updated on December 15, 2023, so confirm current practice on the USPTO site before you file.⁴

Fees

This guide quotes no fee amounts because they change: the USPTO says fees are subject to change annually, and its fee schedule page lists the current provisional application filing fee under 37 CFR 1.16(d).^{4, 11} Check the current amounts for your entity status on the USPTO fee schedule before you file. The schedule also lists a provisional application size fee for each additional 50 sheets that exceeds 100 sheets under 37 CFR 1.16(s), so check it if your draft is long.¹¹

2The 12-month window and the 20-year term

Twelve months, then abandonment

A provisional that is not converted lapses 12 months after filing and cannot be revived after that.¹ Section 111(b)(5) states the rule this way: upon timely request, as prescribed by the Director, a provisional may be treated as an application filed under 111(a); otherwise, subject to 119(e)(3), it is regarded as abandoned 12 months after its filing date and is not subject to revival after that period.¹ Under 119(e)(3), if the 12-month date falls on a Saturday, Sunday or Federal holiday within the District of Columbia, the period runs to the next business day.⁷ The rules’ counterpart to that request is the conversion in 37 CFR 1.53(c)(3): the request must be filed before the provisional is abandoned and within 12 months of its filing date, with the conversion fee and at least one claim unless the provisional already contains one, and the resulting application also needs the non-provisional filing, search and examination fees.³ The same paragraph tells applicants to consider filing a non-provisional that claims the benefit under 119(e) instead, because conversion measures the patent term from at least the provisional’s filing date.^{3, 4}

What the later application must do

To get the provisional’s date, the later application under 111(a) (or under section 363, an international application designating the United States) must be filed by an inventor or inventors named in the provisional, not later than 12 months after the provisional was filed, and must contain or be amended to contain a specific reference to the provisional.⁷ The USPTO says the nonprovisional must have at least one inventor in common with the provisional, and that for applications filed on or after September 16, 2012 the reference goes in an application data sheet.⁴ The reference must be submitted during the pendency of the later application and, for an application filed under 111(a), within the later of four months from its actual filing date or sixteen months from the provisional’s filing date; failure to do so is considered a waiver of the benefit, except as provided in 37 CFR 1.78(c) for an unintentionally delayed reference.^{4, 8} The provisional must also have been entitled to a filing date and the basic filing fee paid, and under 119(e)(2) a provisional may not be relied upon in any proceeding in the USPTO unless the specified fee has been paid.^{4, 7, 8}

The two-month route

Section 119(e)(1) lets the Director allow the 12-month period to be extended by an additional 2 months by regulation if the delay in filing the later application within the 12 months was unintentional.⁷ Under 37 CFR 1.78(b), that means a later application filed within two months after the 12 months, with a petition that includes the reference to the provisional in an application data sheet, the petition fee, and a statement that the delay was unintentional.⁸ The USPTO says the 12-month pendency period cannot be extended and describes this route as restoring the benefit by a grantable petition;⁴ separately, 119(e)(3), described above, moves a 12-month date that falls on a weekend or Federal holiday to the next business day.⁷ The petition restores the benefit; it does not revive the provisional, which 111(b)(5) says is not subject to revival after the 12 months.^{1, 8} Treat it as a safety net, and calendar the 12-month date instead of relying on it.

The USPTO also warns that publicly disclosing the invention during the 12 months can cost more than the provisional’s date if the deadline is missed, including the right to patent the invention at all, and that a public disclosure before filing may preclude patenting in foreign countries.⁴

A provisional does not start the 20-year term

Section 154(a)(2) ends the patent term 20 years from the US filing date or, if the application contains a specific reference to an earlier filed application under section 120, 121, 365(c) or 386(c), from the filing date of the earliest such application, and 154(a)(3) adds that priority under section 119 is not taken into account in determining the term.⁹ A provisional’s benefit is claimed under 119(e), which is part of section 119, so the 20 years run from the non-provisional’s own filing date (or from the earliest application it references under those sections), and the USPTO notes that filing a provisional first may extend the term endpoint by as much as 12 months.^{4, 7, 9}

3Why a thin provisional is the real risk

The date follows the disclosure

The benefit applies “as to such invention”, meaning an invention disclosed in the manner provided by 112(a), other than the requirement to disclose the best mode, in the provisional application.⁷ MPEP 211.05 puts it in claim terms: the written description and drawings of the provisional must adequately support and enable the subject matter claimed in the non-provisional, and a claim that is not adequately supported is not entitled to the provisional’s filing date.¹⁰ The support requirement applies to the later claims even though the provisional needs none.¹⁰ The MPEP section cited here comes from the ninth edition, revision 01.2024, which the USPTO says does not incorporate changes to examining policies and procedures after January 31, 2024; check the current MPEP before you file.¹⁴

MPEP 211.05 illustrates the point with New Railhead Mfg., L.L.C. v. Vermeer Mfg. Co. (Fed. Cir. 2002). The drill bit had been offered for sale; the provisional was filed within one year of the offer, but the non-provisional more than one year after it. Because the provisional nowhere expressly described the bit body as angled with respect to the sonde housing, the court held the patent was not entitled to the provisional’s date and was invalid under 35 U.S.C. 102(b) as it then applied (the bar on a patent filed more than a year after an offer for sale).¹⁰ The MPEP’s account turns on that angle limitation.¹⁰

Here is a hypothetical. An AI-written draft describes a sensor housing held by a screw mount. A year later the inventors want to claim a snap-fit mount that the draft never mentions. Under the MPEP test, a claim to the snap-fit mount is at risk of not being entitled to the provisional’s date, because the provisional does not describe it.¹⁰ Whether that matters depends on what happened between the two filings, which is why the MPEP says care must be taken that the provisional adequately describes and enables the subject matter of the claims at issue when its filing date is needed, for example to overcome a reference.¹⁰ If the team adds detail later, such as the snap-fit mount, ask counsel about filing a further provisional for the new material: a non-provisional may claim the benefit of one or more provisional applications,⁸ and counsel can advise how the 12-month period applies to each.

You cannot patch the provisional afterwards

Under 37 CFR 1.53(c), no amendment other than one to make the provisional comply with the patent statute and applicable regulations may be made after the filing date.³ The USPTO adds that a drawing necessary to understand the invention cannot be introduced after the filing date because of the prohibition against new matter, and recommends that the disclosure be as complete as possible.⁴ Detail that first appears in the later application is not covered by the provisional’s date, because the benefit reaches only what the provisional discloses.^{7, 10} That is why the review has to happen before filing.

A draft from AI Patent Drafting in Patsnap Eureka is a draft in this sense. Its Invention Disclosure workflow highlights missing details in the inventor’s notes, which gives you gaps to close first.¹³ Whether the final text supports the claims you may want later is a judgment for you and your counsel.

4What to check yourself when AI drafts the provisional

Each check below is advice for the human reviewer, and each rests on the rules in sections 1 to 3.

Completeness against 112(a)

List every feature you might claim later: structures, steps, materials, parameters, and the technical effect of each. For each one, find the sentence in the draft that describes it and the sentence that explains how to make and use it, because the test is written description and enablement (enough detail for a skilled person to make and use the invention).^{5, 10} Mark every feature without both, and have the inventors fill the gap before you file. In Patsnap Eureka, Document Editing & Control edits claims, specifications and drawing descriptions with rule checks, terminology consistency and revision tracking, so changes stay auditable across reviewers.¹³ Whether the content is sufficient is still your review.

Alternatives and embodiments

Ask the inventors which variants they would want covered later: other materials, ranges, configurations, sequences of steps, and fallback designs. Describe each variant the team can stand behind, because the later claim needs support in the provisional.¹⁰ Natural-language instructions in Patsnap Eureka can be used to expand embodiments and align terminology in the draft.¹³ Have an inventor confirm that each added embodiment is real and workable, and ask counsel how to treat alternatives the team has not actually considered.

Drawings

The provisional needs a drawing as prescribed by section 113, and section 113 says drawings submitted after the filing date may not be used to overcome an insufficiency of the specification or to supplement the original disclosure when interpreting the scope of a claim.^{1, 6} Check that each figure shows every feature you rely on, and that labels and reference numbers match the text. The Figure Drawing & Generation capability in Patsnap Eureka annotates, redraws and generates patent figures from rough sketches or product photos, with automatic component labelling and reference-number consistency across the specification.¹³ Treat generated figures as drafts, and compare each one with the real design.

Best mode

Section 112(a) requires the specification to set forth the best mode, while section 119(e)(1) and MPEP 211.05 except the best mode requirement when deciding whether the later application gets the provisional’s date.^{5, 7, 10} Ask counsel whether and how to describe the best mode in your draft.

What you upload

The USPTO’s 2024 guidance on AI tools, addressed to practitioners, says that using AI in practice before the USPTO can result in inadvertent disclosure of client-sensitive or confidential information, including highly sensitive technical information, and that this can happen when aspects of an invention are entered into AI systems to generate drafts of a specification or claims.¹² It adds that AI systems may retain the information users enter, that confidential information used to train AI may filter into outputs provided to others, and that such tools may use servers outside the United States, which can implicate export control and foreign filing license issues.¹² It says that before using these tools it is imperative to understand their terms of use, privacy policies and cybersecurity practices.¹²

Read those documents for any tool before you paste an invention into it, and ask counsel whether any use could count as a public disclosure. Our guide, Is It Safe to Upload Confidential Invention Details to an AI Patent Tool?, lists the questions to ask a provider. For Patsnap Eureka, your queries, saved patents, uploads and analysis outputs are never used to train Patsnap’s models, and data is encrypted in transit and at rest.¹³

Human review

The same guidance explains that the signature requirement and its certifications ensure that documents drafted with the help of AI systems have been reviewed by a person who believes everything in the document is true.¹² Have an inventor confirm that every technical statement describes what the team actually built or tested, and have counsel read the final text.

5Drafting a provisional with AI, step by step

1. Gather the source material. Collect the test results and any data yourself, then upload notes, sketches, screenshots and prototype descriptions to the Invention Disclosure workflow in Patsnap Eureka, which turns rough engineering notes into a structured disclosure and highlights missing details; inventors can keep refining the disclosure with simple follow-up edits.¹³
2. Decide what you will upload. Read the tool’s terms of use and privacy policy first, and ask counsel about confidentiality and export-control questions.¹² The USPTO also notes that a public disclosure before filing may preclude patenting in foreign countries.⁴
3. Generate the working draft. In the Patent Drafting workflow, convert invention files, notes, figures and technical references into drafting-ready context and move from claim layout to specification and drawing descriptions.¹³ A claim-style layout can show you what the specification has to support.¹⁰
4. Build a support table. List each feature you may claim and the passage that describes it and explains how to make and use it. Close every gap with the inventors.^{5, 10}
5. Check the figures. Use the Figure Drawing & Generation capability to redraw sketches and keep reference numbers consistent, then compare each figure with the real design and the text.¹³
6. Revise with natural-language instructions. Expand embodiments, align terminology and improve clarity, and keep the revision history so reviewers can see what changed.¹³ Consider Copilot mode, where you stay in the loop and direct each step, over Auto mode, where the agent runs the drafting steps end to end.¹³
7. Review, file and calendar the deadline. Have the inventors and counsel read the final text, file it with the cover sheet and fee, and put the 12-month date in your docket.^{1, 2}

6AI Patent Drafting in Patsnap Eureka

AI Patent Drafting helps you draft from disclosures, helps you analyze disclosures and helps you review applications, in Word or on the web.¹³ Check any output against the provisional rules in this guide.

Where it fits the input stage

The Invention Disclosure workflow turns rough engineering notes into a structured disclosure, highlighting missing details and overlooked inventive points that may become protectable claim directions.¹³ It also prepares pre-filing materials from notes, sketches, screenshots and prototype descriptions.¹³

What the drafting workflow and capabilities do

• Patent Drafting workflow. Converts scattered invention files, notes, figures and technical references into drafting-ready context, moves from claim layout to specification and drawing descriptions in one connected workflow, and edits with natural-language instructions.¹³
• Multimodal Understanding. Reads text, drawings, screenshots, equations and reference files together instead of treating each input separately.¹³
• Figure Drawing & Generation. Annotates, redraws and generates patent figures from rough sketches or product photos, with component labelling and reference-number consistency across the specification.¹³
• Document Editing & Control. Edits claims, specifications and drawing descriptions with rule checks, terminology consistency and revision tracking.¹³
• Agent & Copilot Modes. Auto mode runs the drafting steps end to end; Copilot mode keeps you in the loop and lets you direct each step with natural-language instructions.¹³
• Patent Search Engine. Calls Patsnap Search inside the workflow to retrieve patent records, family documents, citations, legal events and claim context when the draft needs external grounding.¹³

Confidentiality controls

Your queries, saved patents, uploads and analysis outputs are never used to train Patsnap’s models. Your data is encrypted at rest and isolated within secure, enterprise-grade infrastructure, you choose what to upload and when to delete it, and SSO, audit logs and role-based permissions are built for how innovation teams work.¹³ These controls answer the training question for Patsnap Eureka only; they do not replace your own review of any other tool’s terms, or counsel’s view on disclosure.

What it does not do

Do not read any output as a determination that a draft satisfies 112(a), or as a legal conclusion. The test in section 3 applies to its output as it does to any other draft.

The 14-day free trial includes 10,000 trial credits.¹³

Try AI Patent Drafting in Patsnap Eureka →

What this guide does not settle

• Whether your draft is sufficient. That depends on the invention and on what you later claim, and it is a judgment for you, the inventors and counsel.¹⁰
• Whether a provisional is the right first filing. The USPTO lists among a provisional’s features a simplified filing with a lower initial investment and 12 months to assess the invention’s commercial potential, and it warns independent inventors that a provisional will not mature into a granted patent without further submissions.⁴ Our guide How Can AI Help Evaluate the Patentability of an Invention Disclosure Before Filing? covers the earlier decision.
• Scope. This guide covers US provisional applications. It does not cover foreign filing, fee amounts, or inventorship questions for AI-assisted inventions, so ask counsel about those.

Related reading

• How Do I Turn an Engineer’s Technical Document into a Patent-Ready Invention Disclosure?
• Which AI Tools Find Missing Technical Details in an Invention Disclosure? A Completeness Checklist
• Is It Safe to Upload Confidential Invention Details to an AI Patent Tool?
• Can AI Draft a Complete Patent Application? What the Rules Leave to People

Sources and verification

All pages accessed October 27, 2026.

1. 35 U.S.C. 111, Application, subsection (b), Provisional application. law.cornell.edu/uscode/text/35/111
2. 37 CFR 1.51, General requisites of an application, paragraphs (b), (c) and (d). law.cornell.edu/cfr/text/37/1.51
3. 37 CFR 1.53, Application number, filing date, and completion of application, paragraph (c), Provisional application, including (c)(1), (c)(3) and (c)(4). law.cornell.edu/cfr/text/37/1.53
4. USPTO, Provisional Application for Patent (page last updated December 15, 2023). uspto.gov/patents/basics/apply/provisional-application
5. 35 U.S.C. 112, Specification, subsection (a). law.cornell.edu/uscode/text/35/112
6. 35 U.S.C. 113, Drawings. law.cornell.edu/uscode/text/35/113
7. 35 U.S.C. 119, Benefit of earlier filing date; right of priority, subsection (e), Benefit of earlier filing date in the United States. law.cornell.edu/uscode/text/35/119
8. 37 CFR 1.78, Claiming benefit in a nonprovisional application of a prior-filed provisional application, paragraphs (a), (b) and (c). law.cornell.edu/cfr/text/37/1.78
9. 35 U.S.C. 154, Contents and term of patent, subsection (a), paragraphs (2) and (3). law.cornell.edu/uscode/text/35/154
10. USPTO, Manual of Patent Examining Procedure, section 211.05, Sufficiency of Disclosure in Prior-Filed Application [R-01.2024], including the discussion of New Railhead Mfg., L.L.C. v. Vermeer Mfg. Co., 298 F.3d 1290 (Fed. Cir. 2002) (page last modified March 9, 2026). uspto.gov/web/offices/pac/mpep/s211.html
11. USPTO, USPTO fee schedule (page last updated August 14, 2026). uspto.gov/learning-and-resources/fees-and-payment/uspto-fee-schedule
12. USPTO, Guidance on Use of Artificial Intelligence-Based Tools in Practice Before the United States Patent and Trademark Office, 89 FR 25609 (April 11, 2024), sections II(B) and III(D); the guidance states it is not substantive rulemaking and does not have the force and effect of law. govinfo.gov, FR Doc. 2024-07629. govinfo.gov/content/pkg/FR-2024-04-11/html/2024-07629.htm
13. Patsnap Eureka, AI Patent Drafting, including the Invention Disclosure and Patent Drafting workflow tabs, capability tabs, security section and plans. eureka.patsnap.com/ip-drafting
14. USPTO, Manual of Patent Examining Procedure (MPEP), index page (Ninth Edition, Revision 01.2024, and the notice on changes after January 31, 2024). uspto.gov/web/offices/pac/mpep/index.html