Growing community of inventors

Vista, CA, United States of America

Gregory M Duchnak

Average Co-Inventor Count = 2.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 10

Gregory M DuchnakWalter J Whatley (1 patent)Gregory M DuchnakGregory M Duchnak (1 patent)Walter J WhatleyWalter J Whatley (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Hughes Missile Systems Company (1 from 102 patents)


1 patent:

1. 5286108 - Fixture for performing tensile tests at extremely high temperature

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12/24/2025
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