Growing community of inventors

York Beach, ME, United States of America

Douglas J Hill

Average Co-Inventor Count = 3.00

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 = 23

Douglas J Hill ↔ Robert E Rockwood (1 patent)Douglas J Hill ↔ Richard P Antkowiak (1 patent)Douglas J HillDouglas J Hill (1 patent)Robert E RockwoodRobert E Rockwood (32 patents)Richard P AntkowiakRichard P Antkowiak (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. A.w. Chesterton Company (1 from 91 patents)


1 patent:

1. 4572517 - Labyrinth ring seals with housing mounting means

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as of
12/19/2025
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