Robert L. Graff

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Loveland, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for treating sesquisulfate waste streams
- Patent number 6,475,447
- Issue date Nov 5, 2002
- International Paper Company
- Raymond Liu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Recovery of chlorine dioxide from gas streams
- Patent number 6,322,768
- Issue date Nov 27, 2001
- International Paper Company
- Robert L. Graff
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Apparatus and method for treating sesquisulfate waste streams
- Patent number 6,126,702
- Issue date Oct 3, 2000
- International Paper Company
- Raymond Liu
- C01 - INORGANIC CHEMISTRY