Growing community of inventors

Ames, IA, United States of America

Ryan Littler

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 = 3

Ryan Littler ↔ Christopher E Schafer (1 patent)Ryan Littler ↔ Ryan B Gruhn (1 patent)Ryan Littler ↔ Philip R Littler (1 patent)Ryan Littler ↔ Dennis J Deyen (1 patent)Ryan Littler ↔ Tim Caltrider (1 patent)Ryan Littler ↔ Glenn Miller (1 patent)Ryan Littler ↔ James F Popelka (1 patent)Ryan LittlerRyan Littler (1 patent)Christopher E SchaferChristopher E Schafer (18 patents)Ryan B GruhnRyan B Gruhn (5 patents)Philip R LittlerPhilip R Littler (2 patents)Dennis J DeyenDennis J Deyen (1 patent)Tim CaltriderTim Caltrider (1 patent)Glenn MillerGlenn Miller (1 patent)James F PopelkaJames F Popelka (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

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


1 patent:

1. 6302292 - Ticket counting dispenser

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as of
12/11/2025
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