Growing community of inventors

Yorkville, IL, United States of America

Kirk D Hoffman

Average Co-Inventor Count = 3.00

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 = 67

Kirk D HoffmanRobert Huizenger (3 patents)Kirk D HoffmanJoe Ferrantelli (3 patents)Kirk D HoffmanNorman Diamond (2 patents)Kirk D HoffmanJose E Davila (1 patent)Kirk D HoffmanArthur S Zerfahs (1 patent)Kirk D HoffmanKirk D Hoffman (5 patents)Robert HuizengerRobert Huizenger (3 patents)Joe FerrantelliJoe Ferrantelli (3 patents)Norman DiamondNorman Diamond (7 patents)Jose E DavilaJose E Davila (9 patents)Arthur S ZerfahsArthur S Zerfahs (6 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Coin Mechanisms, Inc. (3 from 6 patents)

2. General Signal Corporation (2 from 786 patents)


5 patents:

1. 6098777 - Method and apparatus for discriminating different coins in free fall

2. 5823315 - Coin detector and identifier apparatus and method

3. 5568855 - Coin detector and identifier apparatus and method

4. 5089694 - Card reader device having automatic means for clamping the card to be

5. 5076413 - Multiple bill escrow and storage apparatus

Please report any incorrect information to support@idiyas.com
idiyas.com
as of
1/1/2026
Loading…