Growing community of inventors

Foster City, CA, United States of America

Martha C Johnson

Average Co-Inventor Count = 5.00

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 = 154

Martha C Johnson ↔ Gary L Durbin (1 patent)Martha C Johnson ↔ Scott A Willey (1 patent)Martha C Johnson ↔ Michael J Hemmert (1 patent)Martha C Johnson ↔ Karen V Beaman (1 patent)Martha C JohnsonMartha C Johnson (1 patent)Gary L DurbinGary L Durbin (2 patents)Scott A WilleyScott A Willey (1 patent)Michael J HemmertMichael J Hemmert (1 patent)Karen V BeamanKaren V Beaman (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Tesseract Corporation (1 from 4 patents)


1 patent:

1. 4933842 - Automated investment fund accounting system

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as of
12/31/2025
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