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Baltimore, MD, United States of America

Robert M Keenan

Average Co-Inventor Count = 1.16

ph-index = 7

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 = 125

Robert M KeenanDorothy K Hatsukami (3 patents)Robert M KeenanRobert M Keenan (11 patents)Dorothy K HatsukamiDorothy K Hatsukami (3 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Other (5 from 832,891 patents)

2. Pharmaco Behavioral Associates, Inc. (5 from 5 patents)

3. Lectec Corporation (1 from 37 patents)


11 patents:

1. 5972974 - Transdermal nicotine metabolites and human body weight

2. 5880164 - Nicotine-free smoking material

3. 5869503 - Nicotine metabolites and human body weight

4. 5869505 - Nicotine metabolites and nicotine dependence

5. 5747512 - Use of cotinine to alleviate tobacco withdrawal syndrome

6. 5643928 - Human body weight management

7. 5612357 - Use of cotinine to assist in the cessation of tobacco smoking

8. 5596007 - Therapeutic method to alleviate the craving associated with cessation of

9. 5573774 - Nicotine metabolites, nicotine dependence and human body weight

10. 4971233 - Hygienic donning system for surgical gloves

11. 4915226 - Hygienic donning packaging system for surgical gloves

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as of
12/30/2025
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