Growing community of inventors

Carlisle, IA, United States of America

Jerome J Hartman

Average Co-Inventor Count = 4.00

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 = 28

Jerome J Hartman ↔ Charles A Haas (2 patents)Jerome J Hartman ↔ John E Schenken (2 patents)Jerome J Hartman ↔ Thomas R Steinhagen (1 patent)Jerome J Hartman ↔ Herbert O Dixon (1 patent)Jerome J HartmanJerome J Hartman (2 patents)Charles A HaasCharles A Haas (23 patents)John E SchenkenJohn E Schenken (18 patents)Thomas R SteinhagenThomas R Steinhagen (38 patents)Herbert O DixonHerbert O Dixon (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cobbs Manufacturing Company (2 from 55 patents)


2 patents:

1. D388953 - Expandable key safe

2. D330995 - Drink holder

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as of
1/3/2026
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