James L. Griffin

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Carpentersville, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Light distribution and detection apparatus
- Patent number 4,980,547
- Issue date Dec 25, 1990
- Wells-Gardner Electronics Corp.
- James L. Griffin
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Solid-state optical position determining apparatus
- Patent number 4,820,050
- Issue date Apr 11, 1989
- Wells-Gardner Electronics Corporation
- James L. Griffin
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Lens arrangement
- Patent number 4,820,030
- Issue date Apr 11, 1989
- Wells-Gardner Electronics Corporation
- James L. Griffin
- G02 - OPTICS
Information Patent Grant
Electrical control telemetering device
- Patent number 4,598,291
- Issue date Jul 1, 1986
- Illinois Tool Works Inc.
- James L. Griffin
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Two dimensional optical position indicating apparatus
- Patent number 4,553,842
- Issue date Nov 19, 1985
- Illinois Tool Works Inc.
- James L. Griffin
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Plotting method and apparatus
- Patent number 4,428,056
- Issue date Jan 24, 1984
- Pattern-Scan, Inc.
- Kenneth Schroeder
- G06 - COMPUTING CALCULATING COUNTING