Growing community of inventors

Fremont, CA, United States of America

David H Colby

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 = 3

David H Colby ↔ Mark A Gesley (1 patent)David H ColbyDavid H Colby (1 patent)Mark A GesleyMark A Gesley (13 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Etec Systems, Inc. (1 from 61 patents)


1 patent:

1. 5412218 - Differential virtual ground beam blanker

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12/6/2025
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