Growing community of inventors

Everman, TX, United States of America

Philip D Gressel

Average Co-Inventor Count = 3.16

ph-index = 5

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 207

Philip D GresselRobert E Roehrs (4 patents)Philip D GresselJohn L Ubels (2 patents)Philip D GresselHenry F Edelhauser (2 patents)Philip D GresselHaresh G Bhagat (1 patent)Philip D GresselRobert E Beck (1 patent)Philip D GresselRobert G Harris (1 patent)Philip D GresselFred M Killinger (1 patent)Philip D GresselPhilip D Gressel (5 patents)Robert E RoehrsRobert E Roehrs (9 patents)John L UbelsJohn L Ubels (2 patents)Henry F EdelhauserHenry F Edelhauser (2 patents)Haresh G BhagatHaresh G Bhagat (11 patents)Robert E BeckRobert E Beck (4 patents)Robert G HarrisRobert G Harris (4 patents)Fred M KillingerFred M Killinger (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Alcon Laboratories, Inc. (4 from 449 patents)

2. Other (1 from 832,718 patents)


5 patents:

1. 5403598 - Physiological tear compositions and methods for their preparation

2. 5209927 - Ophthalmic solution

3. 5075104 - Ophthalmic carboxy vinyl polymer gel for dry eye syndrome

4. 4966773 - Topical ophthalmic compositions containing microfine retinoid particles

5. 4826871 - Topical ophthalmic compositions containing one or more retinoids

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as of
12/12/2025
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