Donald L. MacKeen

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Bethesda, MD, US

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Patents Grantslast 30 patents

Information Patent Grant
Composition for treating dry eye
- Patent number 6,254,893
- Issue date Jul 3, 2001
- DEO Corporation
- Donald L. MacKeen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Composition for treating dry eye
- Patent number 5,830,508
- Issue date Nov 3, 1998
- DEO Corporation
- Donald L. MacKeen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Ophthalmic composition for treating dry eye
- Patent number 5,595,764
- Issue date Jan 21, 1997
- DEO Corporation
- Donald L. MacKeen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method of ophthalmic drug delivery
- Patent number 5,366,739
- Issue date Nov 22, 1994
- DEO Corporation
- Donald L. MacKeen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Opthalmic composition for treating dry eye
- Patent number 5,290,572
- Issue date Mar 1, 1994
- DEO Corporation
- Donald L. MacKeen
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

Information Patent Application
Composition for treating dry eye
- Publication number 20020081338
- Publication date Jun 27, 2002
- Donald L. MacKeen
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC