Growing community of inventors

Columbia, SC, United States of America

Douglas Alan Shaffer

Average Co-Inventor Count = 6.00

ph-index = 4

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 = 180

Douglas Alan Shaffer ↔ Olivier Holger Costet (4 patents)Douglas Alan Shaffer ↔ Luke Randel Howlett (4 patents)Douglas Alan Shaffer ↔ John Michael Beville (4 patents)Douglas Alan Shaffer ↔ Jonathan H Derrick (4 patents)Douglas Alan Shaffer ↔ Charles N Davenport (3 patents)Douglas Alan Shaffer ↔ Charles Neil Davenport, Jr (1 patent)Douglas Alan ShafferDouglas Alan Shaffer (4 patents)Olivier Holger CostetOlivier Holger Costet (7 patents)Luke Randel HowlettLuke Randel Howlett (6 patents)John Michael BevilleJohn Michael Beville (6 patents)Jonathan H DerrickJonathan H Derrick (5 patents)Charles N DavenportCharles N Davenport (3 patents)Charles Neil Davenport, JrCharles Neil Davenport, Jr (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Fn Herstal S.a. (4 from 49 patents)


4 patents:

1. D857142 - Pistol

2. D849174 - Pistol

3. D823969 - Pistol

4. D808487 - Semi-automatic pistol

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as of
12/19/2025
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