Growing community of inventors

Slinger, WI, United States of America

John Sonn

Average Co-Inventor Count = 6.00

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

John Sonn ↔ Brian Norbert Drifka (1 patent)John Sonn ↔ Walenty Kalempa (1 patent)John Sonn ↔ Daniel J Gregoriou (1 patent)John Sonn ↔ Arno Klein (1 patent)John Sonn ↔ Donald P Grasso (1 patent)John SonnJohn Sonn (1 patent)Brian Norbert DrifkaBrian Norbert Drifka (19 patents)Walenty KalempaWalenty Kalempa (10 patents)Daniel J GregoriouDaniel J Gregoriou (8 patents)Arno KleinArno Klein (4 patents)Donald P GrassoDonald P Grasso (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rytec Corporation (1 from 48 patents)


1 patent:

1. 8316915 - High speed door assembly

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1/14/2026
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