Growing community of inventors

Huntsville, AL, United States of America

Stephen E Headrick

Average Co-Inventor Count = 2.00

ph-index = 3

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 = 46

Stephen E Headrick ↔ Roger L Hill (2 patents)Stephen E Headrick ↔ Charles E Cataldo (1 patent)Stephen E HeadrickStephen E Headrick (3 patents)Roger L HillRoger L Hill (3 patents)Charles E CataldoCharles E Cataldo (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. United Technologies Corporation (2 from 10,654 patents)

2. Usbi Booster Production Company, Inc. (1 from 2 patents)


3 patents:

1. 4837250 - Trowelable ablative coating composition and method of use

2. 4772495 - Trowelable ablative coating composition and method of use

3. 4755422 - Multilayered electronics protection system

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as of
12/19/2025
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