Daniel Gutchess

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Cambridge, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for detecting surface defects on a workpiece s...
- Patent number 7,627,163
- Issue date Dec 1, 2009
- OG Technologies, Inc.
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for detecting surface defects on a workpiece s...
- Patent number 7,460,703
- Issue date Dec 2, 2008
- OG Technologies, Inc.
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for detecting surface defects on a workpiece s...
- Patent number 7,324,681
- Issue date Jan 29, 2008
- OG Technologies, Inc.
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Apparatus and method for detecting surface defects on a workpiece s...
- Patent number 6,950,546
- Issue date Sep 27, 2005
- OG Technologies, Inc.
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
APPARATUS AND METHOD FOR DETECTING SURFACE DEFECTS ON A WORKPIECE S...
- Publication number 20090046923
- Publication date Feb 19, 2009
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
APPARATUS AND METHOD FOR DETECTING SURFACE DEFECTS ON A WORKPIECE S...
- Publication number 20080063426
- Publication date Mar 13, 2008
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus and method for detecting surface defects on a workpiece s...
- Publication number 20060002605
- Publication date Jan 5, 2006
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Apparatus and method for detecting surface defects on a workpiece s...
- Publication number 20040105001
- Publication date Jun 3, 2004
- OG TECHNOLOGIES, INC., a MICHIGAN CORPORATION,
- Tzyy-Shuh Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE