Growing community of inventors

Tulsa, OK, United States of America

Charles D Brown

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 = 16

Charles D BrownBill Engelhardt (1 patent)Charles D BrownCharles D Brown (1 patent)Bill EngelhardtBill Engelhardt (2 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Oseco Valve and Service Company, Inc. (1 from 1 patent)


1 patent:

1. 5002088 - Clean-in-place pressure and vacuum relief valve

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1/8/2026
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