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For the Inventor, By the Inventor

Charlottesville, VA, United States of America

Diffusion Pharmaceuticals LLC

Calculating rank
USPTO Granted Patents = 18

% Expired Patents = 38.9



Trademarks = 2

Forward Citations = 104

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4 inventors (with patents filed for the assignee):

goldMedal John L Gainer (18 out of 25 patents)

silverMedal Raymond C Grabiak (6 out of 24 patents)

bronzeMedal Marc Lanz (3 out of 4 patents)

4.  Robert H Murray (3 out of 32 patents)


18 patents:

1. 11491129 - Oral formulations of bipolar trans carotenoids (2022-11-08),
2. 11278621 - Trans carotenoids, their synthesis, formulation and uses (2022-03-22),
3. 11185523 - Use of bipolar trans carotenoids with chemotherapy and radiotherapy for treatment of cancer (2021-11-30),
4. 11147859 - Diffusion enhancing compounds and their use alone or with thrombolytics (2021-10-19),
5. 10130689 - Diffusion enhancing compounds and their use alone or with thrombolytics (2018-11-20),
6. 10016384 - Oral formulations of bipolar trans carotenoids (2018-07-10),
7. 9950067 - Trans carotenoids, their synthesis, formulation and uses (2018-04-24),
8. 9604899 - Bipolar trans carotenoid salts and their uses (2017-03-28),
9. 8974822 - Oral formulations of bipolar trans carotenoids (2015-03-10),
10. 8901174 - Use of bipolar trans carotenoids as a pretreatment and in the treatment of peripheral vascular disease (2014-12-02),
11. 8293804 - Use of bipolar trans carotenoids as a pretreatment and in the treatment of peripheral vascular disease (2012-10-23),
12. 8269027 - Bipolar trans carotenoid salts and their uses (2012-09-18),
13. 8206751 - Class of therapeutics that enhance small molecule diffusion (2012-06-26),
14. 8030350 - Trans carotenoids, their synthesis, formulation and uses (2011-10-04),
15. 8017653 - Bipolar trans carotenoid salts and their uses (2011-09-13),
Company Overview
Diffusion Pharmaceuticals LLC is a biotechnology company based in Charlottesville, Virginia, focused on developing innovative therapies to improve oxygen delivery in tissues. The company specializes in the research and development of novel compounds aimed at treating conditions associated with inadequate oxygenation, such as cancer and other ischemic diseases. Through its proprietary technology, Diffusion Pharmaceuticals seeks to enhance patient outcomes by addressing critical medical needs in the field of oxygen-related therapies.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Diffusion Pharmaceuticals LLC USPTO Patent Assignee Logo
18 Patents

#11 in Charlottesville, VA

#300 in Virginia

#17,974 in US

#34,244 in the World

Charlottesville, VA (US)
Charlottesville, VA, United States of America

Diffusion Pharmaceuticals LLC

Forward Citations = 104

4 inventors:

goldMedal John L Gainer (18 out of 25 patents)

silverMedal Raymond C Grabiak (6 out of 24 patents)

bronzeMedal Marc Lanz (3 out of 4 patents)

4.  Robert H Murray (3 out of 32 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Diffusion Pharmaceuticals LLC. Retrieved from https://idiyas.com/company/diffusion-pharmaceuticals

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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