Growing community of inventors

Newbury Park, CA, United States of America

John H Erdmann

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 = 24

John H Erdmann ↔ Willis H Smith, Jr (1 patent)John H Erdmann ↔ Philip G Reif (1 patent)John H ErdmannJohn H Erdmann (1 patent)Willis H Smith, JrWillis H Smith, Jr (11 patents)Philip G ReifPhilip G Reif (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hughes Aircraft Company (1 from 4,197 patents)


1 patent:

1. 6049370 - Liquid crystal light valves using internal, fixed spacers and method of

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