Growing community of inventors

Oakland, CA, United States of America

David C Richards

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 = 53

David C RichardsCharles P Hall (1 patent)David C RichardsDavid C Richards (1 patent)Charles P HallCharles P Hall (48 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Basic Designs, Inc. (1 from 1 patent)


1 patent:

1. 4149339 - Hanging plant holder

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1/9/2026
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