Growing community of inventors

Walnut, IA, United States of America

John J Humphrey

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 6

John J HumphreyDean Wieser (3 patents)John J HumphreyJohn J Humphrey (3 patents)Dean WieserDean Wieser (5 patents)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (3 from 832,843 patents)


3 patents:

1. 7434768 - Portable turnout system

2. 6854945 - Drift pin cap and method of using same

3. 6571963 - Switch heater cover support rack

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idiyas.com
as of
12/28/2025
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