Growing community of inventors

Naperville, IL, United States of America

Robert Kohan

Average Co-Inventor Count = 8.00

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 = 134

Robert Kohan ↔ Douglas G Guenther (1 patent)Robert Kohan ↔ Donald J Alexander (1 patent)Robert Kohan ↔ Chester F Robards, Jr (1 patent)Robert Kohan ↔ Tomas F Leon (1 patent)Robert Kohan ↔ David J Thum (1 patent)Robert Kohan ↔ Steven J Cinke (1 patent)Robert Kohan ↔ Stephen A Waltasti (1 patent)Robert KohanRobert Kohan (1 patent)Douglas G GuentherDouglas G Guenther (43 patents)Donald J AlexanderDonald J Alexander (11 patents)Chester F Robards, JrChester F Robards, Jr (10 patents)Tomas F LeonTomas F Leon (5 patents)David J ThumDavid J Thum (4 patents)Steven J CinkeSteven J Cinke (2 patents)Stephen A WaltastiStephen A Waltasti (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Life Fitness, LLC (1 from 58 patents)


1 patent:

1. 5135447 - Exercise apparatus for simulating stair climbing

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as of
12/30/2025
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