Growing community of inventors

Hoffman Estates, IL, United States of America

Charles H Espersen

Average Co-Inventor Count = 3.00

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

Charles H Espersen ↔ Robert H Evans (1 patent)Charles H Espersen ↔ John W Tsai (1 patent)Charles H EspersenCharles H Espersen (1 patent)Robert H EvansRobert H Evans (6 patents)John W TsaiJohn W Tsai (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Am International Incorporated (1 from 191 patents)


1 patent:

1. 4526364 - Sheet feeding mechanism for duplicating machine with duplexing capability

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