Growing community of inventors

Manhattan Beach, CA, United States of America

Charles D Clarke

Average Co-Inventor Count = 4.00

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 = 2

Charles D Clarke ↔ J Stephen Lewis (1 patent)Charles D Clarke ↔ Jurgis Sapkus (1 patent)Charles D Clarke ↔ James P Mills-Winkler (1 patent)Charles D ClarkeCharles D Clarke (1 patent)J Stephen LewisJ Stephen Lewis (16 patents)Jurgis SapkusJurgis Sapkus (13 patents)James P Mills-WinklerJames P Mills-Winkler (10 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mattel, Inc. (1 from 1,703 patents)


1 patent:

1. 4424644 - Winking apparatus for figure toy

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1/23/2026
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