David D. Double

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Annapolis, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Cementitious composite friction compositions
- Patent number 4,792,361
- Issue date Dec 20, 1988
- Cemcom Corp.
- David D. Double
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Cementitious composite material containing metal fiber
- Patent number 4,780,141
- Issue date Oct 25, 1988
- CEMCOM Corporation
- David D. Double
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Cementitious composite material with silicon carbide aggregate
- Patent number 4,666,520
- Issue date May 19, 1987
- F. P. C. Research, Inc.
- Randall P. Bright
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES