Kirk D. Hoffman

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Yorkville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for discriminating different coins in free fall
- Patent number 6,098,777
- Issue date Aug 8, 2000
- Coin Mechanisms, Inc.
- Kirk D. Hoffman
- G07 - CHECKING-DEVICES
Information Patent Grant
Coin detector and identifier apparatus and method
- Patent number 5,823,315
- Issue date Oct 20, 1998
- Coin Mechanisms, Inc.
- Kirk D. Hoffman
- G07 - CHECKING-DEVICES
Information Patent Grant
Coin detector and identifier apparatus and method
- Patent number 5,568,855
- Issue date Oct 29, 1996
- Coin Mechanisms, Inc.
- Kirk D. Hoffman
- G07 - CHECKING-DEVICES
Information Patent Grant
Card reader device having automatic means for clamping the card to...
- Patent number 5,089,694
- Issue date Feb 18, 1992
- General Signal Corporation
- Arthur S. Zerfahs
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Multiple bill escrow and storage apparatus
- Patent number 5,076,413
- Issue date Dec 31, 1991
- General Signal Corporation
- Jose Davila
- G07 - CHECKING-DEVICES