Growing community of inventors

Richmond, CA, United States of America

John David Gardner

Average Co-Inventor Count = 2.40

ph-index = 2

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 = 21

John David Gardner ↔ Carroll J Wedel (1 patent)John David Gardner ↔ John F Manning (1 patent)John David Gardner ↔ Frank L Steckhahn (1 patent)John David GardnerJohn David Gardner (2 patents)Carroll J WedelCarroll J Wedel (4 patents)John F ManningJohn F Manning (2 patents)Frank L SteckhahnFrank L Steckhahn (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Chevron Research Company (2 from 1,860 patents)


2 patents:

1. 3987001 - Ultraviolet protectorant composition

2. 3939183 - Purification of maleic anhydride

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as of
12/21/2025
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