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Helen Gourley
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San Francisco, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Color separation optical plate for use with LCD panels
Patent number
6,104,446
Issue date
Aug 15, 2000
Richard Blankenbecler
G02 - OPTICS
Information
Patent Grant
Projector system with hollow light pipe optics
Patent number
5,902,033
Issue date
May 11, 1999
Torch Technologies LLC
Maurice E. Levis
G02 - OPTICS
Information
Patent Grant
LCD projection system with polarization doubler
Patent number
5,884,991
Issue date
Mar 23, 1999
Torch Technologies LLC
Maurice E. Levis
G02 - OPTICS
Information
Patent Grant
Projector system with light pipe optics
Patent number
5,829,858
Issue date
Nov 3, 1998
Maurice E. Levis
G02 - OPTICS
Information
Patent Grant
Dual-wavelength low-power built-in-test for a laser-initiated ordna...
Patent number
5,359,192
Issue date
Oct 25, 1994
Quantic Industries Inc.
Michael S. Williams
F42 - AMMUNITION BLASTING
Information
Patent Grant
Lamp reflector assembly
Patent number
4,750,097
Issue date
Jun 7, 1988
Optech Inc.
David A. Pringle
F21 - LIGHTING
Information
Patent Grant
Lamp reflector assembly
Patent number
4,686,612
Issue date
Aug 11, 1987
Optech Inc.
David A. Pringle
F21 - LIGHTING