Growing community of inventors

Altadena, CA, United States of America

David A Evans

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 = 24

David A EvansRobert W Diller (1 patent)David A EvansDavid A Evans (1 patent)Robert W DillerRobert W Diller (20 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Technar Incorporated (1 from 15 patents)


1 patent:

1. 3987385 - Constant force solenoid

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12/11/2025
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