William R. A. Ziegler

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Germantown, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Light-tight optical disk cartridge
- Patent number 5,319,630
- Issue date Jun 7, 1994
- Optex Corporation
- Allen M. Earman
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disk structures for electron trapping optical memory media
- Patent number 5,128,849
- Issue date Jul 7, 1992
- Optex Corpoataion
- Emerie I. Podraczky
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Three laser optical disk drive system
- Patent number 5,113,387
- Issue date May 12, 1992
- Optex Corporation
- Paul Goldsmith
- G11 - INFORMATION STORAGE