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Elfed H. Evans
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Clwyd, GB
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last 30 patents
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Patent Grant
Granular detergent composition including soap noodles that contain...
Patent number
4,992,193
Issue date
Feb 12, 1991
Lever Brothers Company Division of Conopco, Inc.
Elfed H. Evans
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Detergent compositions
Patent number
4,923,636
Issue date
May 8, 1990
Lever Brothers Company
Stephen N. Blackburn
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Detergent compositions manufacturing process by spraying anionic/no...
Patent number
4,826,632
Issue date
May 2, 1989
Lever Brothers Company
Stephen N. Blackburn
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Process for the preparation of a granular detergent composition
Patent number
4,820,441
Issue date
Apr 11, 1989
Lever Brothers Company
Elfed H. Evans
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Spray drying of a detergent containing a porus crystal-growth-modif...
Patent number
4,818,424
Issue date
Apr 4, 1989
Lever Brothers Company
Elfed H. Evans
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...
Information
Patent Grant
Process for manufacture of detergent powder
Patent number
4,549,978
Issue date
Oct 29, 1985
Lever Brothers Company
Elfed H. Evans
C11 - ANIMAL AND VEGETABLE OILS, FATS, FATTY SUBSTANCES AND WAXES FATTY ACIDS...