Growing community of inventors

Atlantic, IA, United States of America

Ryan B Gruhn

Average Co-Inventor Count = 3.08

ph-index = 3

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 = 68

Ryan B GruhnChristopher E Schafer (3 patents)Ryan B GruhnKurt L McCuen (2 patents)Ryan B GruhnMichael E Irlmeier (2 patents)Ryan B GruhnPhilip R Littler (2 patents)Ryan B GruhnGlenn Miller (1 patent)Ryan B GruhnTim Caltrider (1 patent)Ryan B GruhnScott Williams (1 patent)Ryan B GruhnSteve Irlmeier, Deceased (1 patent)Ryan B GruhnDennis J Deyen (1 patent)Ryan B GruhnRyan Littler (1 patent)Ryan B GruhnJames F Popelka (1 patent)Ryan B GruhnRyan B Gruhn (5 patents)Christopher E SchaferChristopher E Schafer (18 patents)Kurt L McCuenKurt L McCuen (2 patents)Michael E IrlmeierMichael E Irlmeier (2 patents)Philip R LittlerPhilip R Littler (2 patents)Glenn MillerGlenn Miller (1 patent)Tim CaltriderTim Caltrider (1 patent)Scott WilliamsScott Williams (1 patent)Steve Irlmeier, DeceasedSteve Irlmeier, Deceased (1 patent)Dennis J DeyenDennis J Deyen (1 patent)Ryan LittlerRyan Littler (1 patent)James F PopelkaJames F Popelka (1 patent)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Schafer Systems Inc. (5 from 13 patents)


5 patents:

1. 6302292 - Ticket counting dispenser

2. 6230926 - Ticket counting dispenser with ticket dispensing assembly

3. 6179525 - Floating dock section

4. 6073572 - Floating dock

5. 5873481 - Display and dispensing device with security door

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idiyas.com
as of
12/12/2025
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