Growing community of inventors

Orchard Park, NY, United States of America

John W Erwin

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 = 32

John W Erwin ↔ Durham S McCauley (1 patent)John W Erwin ↔ John K Waite (1 patent)John W ErwinJohn W Erwin (1 patent)Durham S McCauleyDurham S McCauley (6 patents)John K WaiteJohn K Waite (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Mcgard, Inc. (1 from 90 patents)


1 patent:

1. 4936336 - Tamperproof construction for hydrant actuating nut

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/14/2026
Loading…