Growing community of inventors

Encino, CA, United States of America

Mitchell M Geffen

Average Co-Inventor Count = 2.00

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 = 23

Mitchell M GeffenBarry C Sherman (1 patent)Mitchell M GeffenMitchell M Geffen (1 patent)Barry C ShermanBarry C Sherman (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Mabco, Inc. (1 from 3 patents)


1 patent:

1. 4850595 - Crossword puzzle game

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as of
1/18/2026
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