Growing community of inventors

Barrington, IL, United States of America

John Haarsma

Average Co-Inventor Count = 5.00

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 = 3

John Haarsma ↔ Raymond P O'Leary (2 patents)John Haarsma ↔ Thomas J Tobin (2 patents)John Haarsma ↔ Leonard V Chabala (2 patents)John Haarsma ↔ Christopher D Roman (2 patents)John HaarsmaJohn Haarsma (2 patents)Raymond P O'LearyRaymond P O'Leary (38 patents)Thomas J TobinThomas J Tobin (29 patents)Leonard V ChabalaLeonard V Chabala (23 patents)Christopher D RomanChristopher D Roman (4 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. S&c Electric Company (2 from 432 patents)


2 patents:

1. 4690780 - Insulating material and use thereof in insulators

2. 4622250 - Insulating material and use thereof in insulators

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as of
12/15/2025
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