Norman Owen Clark

Follow

Person

Par, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Finely divided calcium carbonate compositions
- Patent number 4,732,748
- Issue date Mar 22, 1988
- Cyprus Mines Corporation
- Robert D. Stewart
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Pressure filters
- Patent number 4,447,327
- Issue date May 8, 1984
- English Clays Lovering Pochin & Co. Ltd.
- Norman O. Clark
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Pressure filters
- Patent number 4,300,277
- Issue date Nov 17, 1981
- English Clays Lovering Pochin & Company, Ltd.
- Norman O. Clark
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Mineral fillers
- Patent number 4,174,279
- Issue date Nov 13, 1979
- English Clays Lovering Pochin & Co. Ltd.
- Norman O. Clark
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Magnetic separation
- Patent number 4,129,498
- Issue date Dec 12, 1978
- English Clays Lovering Pochin & Co. Limited
- Norman O. Clark
- B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES O...
Information Patent Grant
Magnetic separation, method and apparatus
- Patent number 4,116,829
- Issue date Sep 26, 1978
- English Clays Lovering Pochin & Company Limited
- Norman Owen Clark
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE