John A. Worrell

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Hudson, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
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- Patent number 10,618,234
- Issue date Apr 14, 2020
- 3M Innovative Properties Company
- Kenneth L. Smith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Retroflective sheeting
- Patent number 9,878,507
- Issue date Jan 30, 2018
- 3M Innovative Properties Company
- Kenneth L. Smith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Retroreflective sheeting
- Patent number 8,783,879
- Issue date Jul 22, 2014
- 3M Innovative Properties Company
- Kenneth L. Smith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Retroreflective sheeting
- Patent number 8,371,703
- Issue date Feb 12, 2013
- 3M Innovative Properties Company
- Kenneth L. Smith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
RETROREFLECTIVE SHEETING
- Publication number 20180117863
- Publication date May 3, 2018
- 3M Innovative Properties Company
- Kenneth L. Smith
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
RETROFLECTIVE SHEETING
- Publication number 20140285890
- Publication date Sep 25, 2014
- KENNETH L. SMITH
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
Information Patent Application
RETROREFLECTIVE SHEETING
- Publication number 20110255165
- Publication date Oct 20, 2011
- Kenneth L. Smith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
RETROREFLECTIVE SHEETING
- Publication number 20100103521
- Publication date Apr 29, 2010
- 3M Innovative Properties Company
- Kenneth L. Smith
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL