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Philip D. Gressel
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Everman, TX, US
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last 30 patents
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Patent Grant
Physiological tear compositions and methods for their preparation
Patent number
5,403,598
Issue date
Apr 4, 1995
Alcon Laboratories, Inc.
Robert E. Beck
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Ophthalmic solution
Patent number
5,209,927
Issue date
May 11, 1993
Alcon Laboratories, Inc.
Philip D. Gressel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Ophthalmic carboxy vinyl polymer gel for dry eye syndrome
Patent number
5,075,104
Issue date
Dec 24, 1991
Alcon Laboratories, Inc.
Philip D. Gressel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Topical ophthalmic compositions containing microfine retinoid parti...
Patent number
4,966,773
Issue date
Oct 30, 1990
Alcon Laboratories, Inc.
Philip D. Gressel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Topical ophthalmic compositions containing one or more retinoids
Patent number
4,826,871
Issue date
May 2, 1989
Philip D. Gressel
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE