Krishnan J. Pillai

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Aurora, IL, US

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Patents Grantslast 30 patents

Information Patent Grant
Vinylamine copolymer coagulants for use in coal refuse dewatering
- Patent number 5,622,533
- Issue date Apr 22, 1997
- Nalco Chemical Company
- Anthony G. Sommese
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of dewatering coal using vinyl amine-containing coagulants
- Patent number 5,529,588
- Issue date Jun 25, 1996
- Nalco Chemical Company
- Anthony G. Sommese
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Coagulant for twin belt filter presses
- Patent number 5,518,634
- Issue date May 21, 1996
- Nalco Chemical Company
- Krishnan J. Pillai
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Vinylamine copolymer flocculangts for use in coal refuse thickening
- Patent number 5,441,649
- Issue date Aug 15, 1995
- Nalco Chemical Company
- Anthony G. Sommese
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of dewatering a wet process phosphoric acid slurry
- Patent number 5,185,135
- Issue date Feb 9, 1993
- Nalco Chemical Company
- Krishnan J. Pillai
- C01 - INORGANIC CHEMISTRY