D. Bruce Evans

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Bethlehem, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Rosin/hydrocarbon resin size for paper
- Patent number 6,273,997
- Issue date Aug 14, 2001
- Hercules Incorporated
- Susan M. Ehrhardt
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Rosin sizing at neutral to alkaline pH
- Patent number 6,228,219
- Issue date May 8, 2001
- Hercules Incorporated
- Susan M. Ehrhardt
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Rosin sizing at neutral to alkaline pH
- Patent number 6,033,526
- Issue date Mar 7, 2000
- Hercules Incorporated
- Susan M. Ehrhardt
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE