Douglas R. Grundstrom

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San Jose, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Laser adjustment mechanism
- Patent number 5,999,346
- Issue date Dec 7, 1999
- Zircon Corporation
- Douglas R. Grundstrom
- G01 - MEASURING TESTING
Information Patent Grant
Calibrated bevel square with integrated electronic level and plumb
- Patent number 5,452,522
- Issue date Sep 26, 1995
- Zircon Corporation
- Donald D. Kook
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Input device featuring both trackball and mouse capability
- Patent number 4,562,347
- Issue date Dec 31, 1985
- Trace Systems, Inc.
- Dean A. Hovey
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Home computer housing and display support
- Patent number D274730
- Issue date Jul 17, 1984
- Trace Systems, Inc.
- Dean A. Hovey
- D14 - Recording, communication, or information retrieval equipment
Information Patent Grant
Home computer housing and display support
- Patent number D274729
- Issue date Jul 17, 1984
- Trace Systems, Inc.
- Dean A. Hovey
- D14 - Recording, communication, or information retrieval equipment