Frederck T. Mattern

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Portland, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
User adaptable ink status conveyance system
- Patent number 8,186,785
- Issue date May 29, 2012
- Xerox Corporation
- Christopher Ryan Gold
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
User adaptable ink status conveyance system
- Patent number 8,132,877
- Issue date Mar 13, 2012
- Xerox Corporation
- Christopher Ryan Gold
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS