Growing community of inventors

Alameda, CA, United States of America

Andrew Y Cheng

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 = 4

Andrew Y ChengWilliam B Gripe (1 patent)Andrew Y ChengAndrew Y Cheng (1 patent)William B GripeWilliam B Gripe (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Amot Controls Corp. (1 from 11 patents)


1 patent:

1. 5072748 - Fluid pressure operated indicating relay

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as of
12/19/2025
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