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Schwenksville, PA, United States of America

John Aff

Average Co-Inventor Count = 2.00

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 = 41

John AffJohn R Boehringer (2 patents)John AffJohn Aff (2 patents)John R BoehringerJohn R Boehringer (50 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Boehringer Laboratories, Incorporated (2 from 35 patents)


2 patents:

1. 4986175 - Ink stamp apparatus and kit

2. D290469 - Ink stamp

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1/5/2026
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