H. Erwin Grellmann

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Aloha, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Solid ink stick supply system
- Patent number 5,975,690
- Issue date Nov 2, 1999
- Tektronix, Inc.
- H. Erwin Grellmann
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Solid ink stick supply apparatus and method
- Patent number 5,917,528
- Issue date Jun 29, 1999
- Tektronix, Inc.
- H. Erwin Grellmann
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for automatic print head spacing in an ink jet printer
- Patent number 5,821,952
- Issue date Oct 13, 1998
- Tektronix, Inc.
- David D. Martenson
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Fusing apparatus for a printer
- Patent number 5,761,597
- Issue date Jun 2, 1998
- Tektronix, Inc.
- Craig Smith
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY