Growing community of inventors

Warminster, PA, United States of America

Karl John Hartman

Average Co-Inventor Count = 2.00

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 = 10

Karl John HartmanAlan Wayne Kohr (1 patent)Karl John HartmanKarl John Hartman (1 patent)Alan Wayne KohrAlan Wayne Kohr (10 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Rohm and Haas Company (1 from 3,400 patents)


1 patent:

1. 6548596 - Polymer compositions

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