Growing community of inventors

Dayton, OH, United States of America

R David Fehrman

Average Co-Inventor Count = 3.60

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 = 124

R David FehrmanMartin H Hileman (3 patents)R David FehrmanDaniel David Thaxton (3 patents)R David FehrmanPatrick Fitzgerald Wilkinson (2 patents)R David FehrmanR David Fehrman (3 patents)Martin H HilemanMartin H Hileman (8 patents)Daniel David ThaxtonDaniel David Thaxton (7 patents)Patrick Fitzgerald WilkinsonPatrick Fitzgerald Wilkinson (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. The Standard Register Company (3 from 224 patents)


3 patents:

1. 6554193 - Smart card with replaceable chip

2. 6375081 - Business form including smart card and smart card reader

3. 6193163 - Smart card with replaceable chip

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1/1/2026
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