Sven Karlsson

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for refilling ink jet cartridges
- Patent number 5,686,948
- Issue date Nov 11, 1997
- Graphic Utilities, Inc.
- Richard G. Crystal
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for opening, refilling and sealing a cartridge
- Patent number 5,572,852
- Issue date Nov 12, 1996
- Richard G. Crystal
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method for refilling ink jet cartridges
- Patent number 5,488,400
- Issue date Jan 30, 1996
- Graphic Utilities, Inc.
- Richard G. Crystal
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Kit and method for opening, refilling and sealing a cartridge
- Patent number 5,400,573
- Issue date Mar 28, 1995
- Richard G. Crystal
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
INK JET CARTRIDGE REFILL SYSTEM, KIT, STATION, AND METHOD
- Publication number 20010013884
- Publication date Aug 16, 2001
- RICHARD G. CRYSTAL
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS