David W. Holdridge

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Fullerton, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Transparency assembly and method for using it
- Patent number 4,979,342
- Issue date Dec 25, 1990
- Swedlow, Inc.
- David W. Holdridge
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Optical transparency having an electromagnetic pulse shield
- Patent number 4,932,755
- Issue date Jun 12, 1990
- Swedlow, Inc.
- David W. Holdridge
- B64 - AIRCRAFT AVIATION COSMONAUTICS
Information Patent Grant
Contoured transparency providing reduced optical distortion and met...
- Patent number 4,682,856
- Issue date Jul 28, 1987
- Swedlow, Inc.
- David W. Holdridge
- G02 - OPTICS
Information Patent Grant
Focusing reflector
- Patent number 4,344,673
- Issue date Aug 17, 1982
- Swedlow, Inc.
- David W. Holdridge
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Focusing device for concentrating radiation
- Patent number 4,312,330
- Issue date Jan 26, 1982
- Swedlow, Inc.
- David W. Holdridge
- F24 - HEATING RANGES VENTILATING