Growing community of inventors

Battle Creek, MI, United States of America

Karl-Heinz G Ligensa

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 = 3

Karl-Heinz G Ligensa ↔ Philip Cherdron (1 patent)Karl-Heinz G LigensaKarl-Heinz G Ligensa (1 patent)Philip CherdronPhilip Cherdron (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Keiper U.s.a., Inc. (1 from 13 patents)


1 patent:

1. 4488451 - Integral hand knob gear

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as of
12/15/2025
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