John A. Schmidt

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L'ile Bizard, CA

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Patents Grantslast 30 patents

Information Patent Grant
Inhibition of pulp and paper yellowing using hydroxylamines and oth...
- Patent number 6,599,326
- Issue date Jul 29, 2003
- Ciba Specialty Chemicals Corporation
- Raymond Seltzer
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Inhibition of pulp and paper yellowing using nitroxides, hydroxylam...
- Patent number 6,500,303
- Issue date Dec 31, 2002
- Ciba Specialty Chemicals Corporation
- Raymond R. Seltzer
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Inhibition of pulp and paper yellowing using nitroxides, hydroxylam...
- Patent number 6,447,644
- Issue date Sep 10, 2002
- Ciba Specialty Chemicals Corporation
- Raymond R. Seltzer
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Inhibition of pulp and paper yellowing using nitroxides, hydroxylam...
- Patent number 6,254,724
- Issue date Jul 3, 2001
- Ciba Specialty Chemicals Corporation
- Raymond R. Seltzer
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Inhibition of yellowing in papers
- Publication number 20030121630
- Publication date Jul 3, 2003
- Zhirun Yuan
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Inhibition of pulp and paper yellowing using hydroxylamines and oth...
- Publication number 20020174964
- Publication date Nov 28, 2002
- Raymond Seltzer
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
Inhibition of pulp and paper yellowing using nitroxides, hydroxylam...
- Publication number 20020124980
- Publication date Sep 12, 2002
- Raymond R. Seltzer
- C07 - ORGANIC CHEMISTRY
Information Patent Application
INHIBITION OF PULP AND PAPER YELLOWING USING HYDROXYLAMINES AND OTH...
- Publication number 20020088574
- Publication date Jul 11, 2002
- RAYMOND SELTZER
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE