S.D. Warren Company

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Westbrook, ME, US

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Patents Grantslast 30 patents

Information Patent Grant
Rotary joints
- Patent number 7,150,477
- Issue date Dec 19, 2006
- S. D. Warren Company
- Mark A. Reifschneider
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Method and apparatus for calendering paper and internally heated roll
- Patent number 5,252,185
- Issue date Oct 12, 1993
- S. D. Warren Company
- Eric R. Ellis
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Polishing doctor blade with diamond abrasive particles for a calend...
- Patent number 5,174,862
- Issue date Dec 29, 1992
- S. D. Warren Company
- Gregory H. Hale
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Replicating process for interference patterns
- Patent number 4,840,757
- Issue date Jun 20, 1989
- S. D. Warren Company
- Gary P. Blenkhorn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
Rotary Joints
- Publication number 20070066408
- Publication date Mar 22, 2007
- S.D. Warren Company
- Mark A. Reifschneider
- F28 - HEAT EXCHANGE IN GENERAL

Trademarklast 30 trademarks

Information Trademark
86760930 - OPUS DX
- Serial number 86760930
- Registration number 4972281
- Filing date Sep 18, 2015
- S.D. Warren Company
- 16 - Paper, cardboard and goods made from these materials, not included in other classes
Information Trademark
86760878 - OPUS PS
- Serial number 86760878
- Registration number 4972280
- Filing date Sep 18, 2015
- S.D. Warren Company
- 16 - Paper, cardboard and goods made from these materials, not included in other classes