David R. Spencer

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Melville, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
High resolution laser printer
- Patent number 4,613,877
- Issue date Sep 23, 1986
- Data Recording Systems, Inc.
- David R. Spencer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Dual mode laser printer
- Patent number 4,578,689
- Issue date Mar 25, 1986
- Data Recording Systems, Inc.
- David R. Spencer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
First grate detector for an optical scanning system
- Patent number 4,290,086
- Issue date Sep 15, 1981
- Litton Systems, Inc.
- David R. Spencer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Facsimile system
- Patent number 4,161,757
- Issue date Jul 17, 1979
- Litton Systems, Inc.
- David R. Spencer
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of graphic data redundancy reduction in an optical facsimile...
- Patent number 4,110,795
- Issue date Aug 29, 1978
- Litton Systems, Inc.
- David R. Spencer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
EVALUATION OF OUTPUT-PRODUCING ASSET PRODUCTIVITY
- Publication number 20150220869
- Publication date Aug 6, 2015
- Spencer & Associates Publishing, Ltd.
- David R. SPENCER
- G06 - COMPUTING CALCULATING COUNTING