John A. Ramthun

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Hudson, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Multiscale uniformity analysis of a material
- Patent number 9,841,383
- Issue date Dec 12, 2017
- 3M Innovative Properties Company
- Evan J. Ribnick
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Rapid processing and detection of non-uniformities in web-based mat...
- Patent number 9,031,312
- Issue date May 12, 2015
- 3M Innovative Properties Company
- Evan J. Ribnick
- G01 - MEASURING TESTING
Information Patent Grant
System for detection of non-uniformities in web-based materials
- Patent number 9,002,072
- Issue date Apr 7, 2015
- 3M Innovative Properties Company
- Catherine P. Tarnowski
- G01 - MEASURING TESTING
Information Patent Grant
Web inspection calibration system and related methods
- Patent number 7,957,000
- Issue date Jun 7, 2011
- 3M Innovative Properties Company
- David L. Hofeldt
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Web inspection calibration system and related methods
- Patent number 7,773,226
- Issue date Aug 10, 2010
- 3M Innovative Properties Company
- David L. Hofeldt
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Low cost thickness measurement method and apparatus for thin coatings
- Patent number 6,252,237
- Issue date Jun 26, 2001
- 3M Innovation Properties Company
- John A. Ramthun
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
MULTISCALE UNIFORMITY ANALYSIS OF A MATERIAL
- Publication number 20160282279
- Publication date Sep 29, 2016
- 3M INNOVATIVE PROPERTIES COMPANY
- Evan J. Ribnick
- G01 - MEASURING TESTING
Information Patent Application
SYSTEM FOR DETECTION OF NON-UNIFORMITIES IN WEB-BASED MATERIALS
- Publication number 20130322733
- Publication date Dec 5, 2013
- 3M Innovative Properties Company
- Catherine P. Tarnowski
- G01 - MEASURING TESTING
Information Patent Application
RAPID PROCESSING AND DETECTION OF NON-UNIFORMITIES IN WEB-BASED MAT...
- Publication number 20130236082
- Publication date Sep 12, 2013
- Evan J. Ribnick
- G01 - MEASURING TESTING
Information Patent Application
WEB INSPECTION CALIBRATION SYSTEM AND RELATED METHODS
- Publication number 20100231897
- Publication date Sep 16, 2010
- 3M Innovative Properties Company
- David L. HOFELDT
- G01 - MEASURING TESTING
Information Patent Application
WEB INSPECTION CALIBRATION SYSTEM AND RELATED METHODS
- Publication number 20090303484
- Publication date Dec 10, 2009
- 3M Innovative Properties Company
- David L. HOFELDT
- G01 - MEASURING TESTING