Growing community of inventors

Hermosa Beach, CA, United States of America

David A Hill

Average Co-Inventor Count = 5.00

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 = 144

David A Hill ↔ Durk J Pearson (1 patent)David A Hill ↔ Ethelyn P Motley (1 patent)David A Hill ↔ James L Farrell (1 patent)David A Hill ↔ Thomas N Beard (1 patent)David A HillDavid A Hill (1 patent)Durk J PearsonDurk J Pearson (6 patents)Ethelyn P MotleyEthelyn P Motley (1 patent)James L FarrellJames L Farrell (1 patent)Thomas N BeardThomas N Beard (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Trw Limited (1 from 3,081 patents)


1 patent:

1. 4065183 - Recovery system for oil shale deposits

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as of
12/20/2025
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