Growing community of inventors

Elm Grove, WI, United States of America

Darrell E Johnson

Average Co-Inventor Count = 4.00

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 = 51

Darrell E Johnson ↔ Michael John Palmer (1 patent)Darrell E Johnson ↔ William James Sheets (1 patent)Darrell E Johnson ↔ Patrick Allen VanRyzin (1 patent)Darrell E JohnsonDarrell E Johnson (1 patent)Michael John PalmerMichael John Palmer (6 patents)William James SheetsWilliam James Sheets (1 patent)Patrick Allen VanRyzinPatrick Allen VanRyzin (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ge Medical Systems Information Technologies Gmbh (1 from 167 patents)


1 patent:

1. 6828910 - Apparatus for monitoring gas concentrations

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/16/2026
Loading…