William A. Heeschen

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Midland, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Polishing layer analyzer and method
- Patent number 10,272,541
- Issue date Apr 30, 2019
- Rohm and Haas Electronic Matericals CMP Holdings, Inc.
- Scott Chang
- B24 - GRINDING POLISHING
Information Patent Grant
Method of manufacturing chemical mechanical polishing pads
- Patent number 9,770,808
- Issue date Sep 26, 2017
- Rohm and Haas Electronic Materials CMP Holdings, Inc.
- Francis V. Acholla
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Chemical mechanical polishing pad, polishing layer analyzer and method
- Patent number 9,737,971
- Issue date Aug 22, 2017
- Rohm and Haas Electronic Materials CMP Holdings, Inc.
- Francis V. Acholla
- B24 - GRINDING POLISHING
Information Patent Grant
Filter and membrane defect detection system
- Patent number 8,875,562
- Issue date Nov 4, 2014
- Dow Global Technologies LLC
- Stewart P. Wood
- G01 - MEASURING TESTING
Information Patent Grant
Stable turbidity calibration standards
- Patent number 7,843,560
- Issue date Nov 30, 2010
- Dow Global Technologies Inc.
- Richard S. Harner
- G01 - MEASURING TESTING
Information Patent Grant
Fiber optic probe and method for detecting optically active materials
- Patent number 5,311,283
- Issue date May 10, 1994
- The Dow Chemical Company
- William A. Heeschen
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
POLISHING LAYER ANALYZER AND METHOD
- Publication number 20170209979
- Publication date Jul 27, 2017
- Rohm and Haas Electronic Materials CMP Holdings, INC.
- Scott Chang
- G01 - MEASURING TESTING
Information Patent Application
CHEMICAL MECHANICAL POLISHING PAD, POLISHING LAYER ANALYZER AND METHOD
- Publication number 20170197290
- Publication date Jul 13, 2017
- Rohm and Haas Electronic Materials CMP Holdings, INC.
- Francis V. Acholla
- B24 - GRINDING POLISHING
Information Patent Application
METHOD OF MANUFACTURING CHEMICAL MECHANICAL POLISHING PADS
- Publication number 20170197295
- Publication date Jul 13, 2017
- Rohm and Haas Electronic Materials CMP Holdings, INC.
- Francis V. Acholla
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Application
FILTER AND MEMBRANE DEFECT DETECTION SYSTEM
- Publication number 20120297863
- Publication date Nov 29, 2012
- DOW GLOBAL TECHNOLOGIES LLC
- Stewart P. Wood
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
DIGITAL IMAGING SYSTEM
- Publication number 20100118130
- Publication date May 13, 2010
- J. Keith Harris
- G01 - MEASURING TESTING
Information Patent Application
STABLE TURBIDITY CALIBRATION STANDARDS
- Publication number 20090059218
- Publication date Mar 5, 2009
- Richard S. Harner
- G01 - MEASURING TESTING