David E. Severeid

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Puyallup, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Fractionation of lignocellulosic material using ionic liquids
- Patent number 8,435,355
- Issue date May 7, 2013
- Weyerhaeuser NR Company
- Angela P. Gifford
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus for making carboxylated pulp fibers
- Patent number 7,001,483
- Issue date Feb 21, 2006
- Weyerhaeuser Company
- David E. Severeid
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
FRACTIONATION OF LIGNOCELLULOSIC MATERIAL USING IONIC LIQUIDS
- Publication number 20100163018
- Publication date Jul 1, 2010
- WEYERHAEUSER COMPANY
- ANGELA P. GIFFORD
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Methods for making carboxylated pulp fibers
- Publication number 20050028953
- Publication date Feb 10, 2005
- David E. Severeid
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Apparatus for making carboxylated pulp fibers
- Publication number 20050028952
- Publication date Feb 10, 2005
- David E. Severeid
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE