Roy Van Essen

Follow

Person

North Gower, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Adjustable activity drainage box
- Patent number RE43679
- Issue date Sep 25, 2012
- AstenJohnson, Inc.
- Roy Van Essen
- 162 - Paper making and fiber liberation
Information Patent Grant
Fabric support element for a papermaking machine
- Patent number RE40720
- Issue date Jun 9, 2009
- AstenJohnson, Inc.
- John G. Buchanan
- 162 - Paper making and fiber liberation
Information Patent Grant
Fabric support element for a papermaking machine
- Patent number 7,005,040
- Issue date Feb 28, 2006
- AstenJohnson, Inc.
- John G. Buchanan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Adjustable activity drainage box
- Patent number 6,780,286
- Issue date Aug 24, 2004
- AstenJohnson, Inc.
- Roy Van Essen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE

Patents Applicationslast 30 patents

Information Patent Application
Fabric support element for a papermaking machine
- Publication number 20030173048
- Publication date Sep 18, 2003
- John G. Buchanan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Adjustable activity drainage box
- Publication number 20030024673
- Publication date Feb 6, 2003
- Roy Van Essen
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Vented lead blade
- Publication number 20020046821
- Publication date Apr 25, 2002
- John G. Buchanan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE