Growing community of inventors

St. Louis, MO, United States of America

Douglas A Richard

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 = 5

Douglas A Richard ↔ Richard S Jackson (1 patent)Douglas A RichardDouglas A Richard (1 patent)Richard S JacksonRichard S Jackson (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Sunnen Products Company (1 from 61 patents)


1 patent:

1. 5234295 - Adjustable support fixture

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as of
12/20/2025
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