Paul D. Copenhaver

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Colleyville, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Infra-red forced air dryer and extractor
- Patent number 6,427,594
- Issue date Aug 6, 2002
- Printing Research, Inc.
- Howard Curtis Secor
- F26 - DRYING
Information Patent Grant
Infrared heating apparatus and method for a printing press
- Patent number 5,966,836
- Issue date Oct 19, 1999
- DeMoore; Howard W.
- Benito Valdez
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Infra-red forced air dryer and extractor
- Patent number 5,537,925
- Issue date Jul 23, 1996
- DeMoore; Howard W.
- Howard C. Secor
- F26 - DRYING