Growing community of inventors

Libertyville, IL, United States of America

Lehner C Freborg

Average Co-Inventor Count = 3.00

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 = 0

Lehner C Freborg ↔ Clifford A Evans (1 patent)Lehner C Freborg ↔ Arthur Kamin (1 patent)Lehner C FreborgLehner C Freborg (1 patent)Clifford A EvansClifford A Evans (3 patents)Arthur KaminArthur Kamin (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Ammco Tools, Inc. (1 from 31 patents)


1 patent:

1. 4015481 - Bubble balancer

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12/19/2025
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