Ralph S. Grant

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Beaverton, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Multi-stage pulp washing within a batch digester
- Patent number 5,015,333
- Issue date May 14, 1991
- Beloit Corporation
- Ralph S. Grant
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Batch digester multi-stage pulping process
- Patent number 4,849,052
- Issue date Jul 18, 1989
- Beloit Corporation
- Ralph S. Grant
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE