Adjustable Rate Mortgage With Fixed Payment

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Solution Overview

Problem

Borrowers face significant costs and inconvenience when refinancing fixed-rate mortgages due to rising interest rates, and lenders experience reduced yields and portfolio turnover, necessitating a mortgage product that provides predictability and reduces refinancing needs in varying interest rate environments.

Innovation Solution

A system and method for an adjustable rate mortgage (ARM) with a fixed payment, where the payment is based on an initial interest rate serving as a maximum, allowing borrowers to prepay the mortgage by applying the difference between the fixed payment and the principal and interest amount determined at revised interest rates, thereby reducing the loan term and minimizing refinancing costs.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If borrowers refinance fixed-rate mortgages to take advantage of lower interest rates, then monthly payments are reduced, but closing costs increase and refinancing frequency increases

Engineering Contradiction:

Improvemonthly payment amountVSAvoidclosing costs

Core Design Contradiction:

Use of energy by moving objectVSLoss of substance

Solution Approach 1:

The patent applies dynamics by transitioning from a static fixed-rate mortgage structure to a dynamic adjustable-rate mortgage structure with fixed payments. The interest rate adjusts periodically based on market conditions while the payment amount remains fixed, allowing borrowers to benefit from lower rates without refinancing. This dynamic structure eliminates closing costs and the cycle of repeated refinancing while maintaining payment predictability.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter structure by separating the interest rate parameter from the payment amount parameter. In traditional mortgages, both are fixed or both adjust together. This invention allows the interest rate to fluctuate with market conditions while the payment parameter remains fixed, creating a hybrid structure that captures the benefits of both fixed and adjustable rate mortgages.

Inventive Principle:

Principle #35Parameter changes

2Use of energy by moving object

If adjustable rate mortgages allow interest rates to adjust lower, then monthly payments decrease, but borrowers face uncertainty and cannot afford potential higher payments

Engineering Contradiction:

Improvemonthly payment amountVSAvoidpayment predictability

Core Design Contradiction:

Use of energy by moving objectVSReliability

Solution Approach 1:

The patent applies dynamics by making the interest rate adjustable while keeping the payment fixed. This creates a dynamic system where the allocation of the fixed payment between principal and interest changes over time based on market rates, but the total payment obligation remains predictable and certain for the borrower.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent converts the potential harm of interest rate volatility into benefit by structuring the mortgage so that rate adjustments work in the borrower's favor. When rates fall, more of the fixed payment applies to principal reduction. When rates rise, the payment remains fixed providing predictability, and the unapplied portion effectively prepays principal, reducing future interest exposure.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

3Adaptability or versatility

If adjustable rate mortgages allow interest rates to adjust higher, then monthly payments increase, but borrowers view the product as too risky

Engineering Contradiction:

Improveinterest rate adjustmentVSAvoidborrower risk perception

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent converts the potential harm of rising interest rates into benefit by structuring the mortgage so that when rates rise, the fixed payment creates automatic principal prepayment. This reduces the outstanding balance and limits the borrower's exposure to future rate increases, effectively protecting the borrower while maintaining adaptability to market conditions.

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent incorporates feedback mechanisms where the fixed payment structure continuously adjusts the principal balance based on prevailing interest rates. This creates a self-regulating system that provides feedback protection to borrowers, reducing risk perception while maintaining the adaptability of adjustable rates.

Inventive Principle:

Principle #23Feedback

4Productivity

If lenders sell mortgage notes to investors, then liquidity increases, but lenders and investors prefer higher yields and low refinancing turnover

Engineering Contradiction:

Improveportfolio liquidityVSAvoidyield reduction

Core Design Contradiction:

ProductivityVSLoss of energy

Solution Approach 1:

The patent applies dynamics by creating an adjustable-rate mortgage structure that adapts to market interest rate conditions. This dynamic structure reduces refinancing turnover by allowing borrowers to benefit from rate changes within the existing mortgage framework, thereby maintaining stable yield streams for lenders and investors while preserving portfolio liquidity.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS7647272B1Systems and methods for providing an adjustable rate mortgage with a fixed monthly payment

Publication Date: 2010.01.12 MAC FREDDIE

AI summary

Systems and methods are described for processing mortgage payments. In one embodiment, the method includes receiving a fixed payment for the mortgage, such fixed payment being based on an initial interest rate, with the initial interest rate serving as a maximum interest rate; determining a principal and interest payment amount based on a revised interest rate, the revised interest rate not exceeding the maximum interest rate; determining a difference between the fixed payment and the determined principal and interest amount, so that any difference may prepay the mortgage.