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Porter Ranch, CA, United States of America

Edmond A Defrank

Average Co-Inventor Count = 4.00

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 = 3

Edmond A DefrankAllen Mark Jones (1 patent)Edmond A DefrankKarin M Somoza (1 patent)Edmond A DefrankRobert B Silverman (1 patent)Edmond A DefrankEdmond A Defrank (1 patent)Allen Mark JonesAllen Mark Jones (21 patents)Karin M SomozaKarin M Somoza (4 patents)Robert B SilvermanRobert B Silverman (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (1 from 832,812 patents)


1 patent:

1. 9574661 - Controlled applied resistance multiple axis continually variable differential transmission

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12/21/2025
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