CIPO Patents = 2

EPO Patents = 3

Forward Citations = 515

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3 inventors (with patents filed for the assignee):

Merrill A Biel (9 out of 15 patents)

Ronald R Zimmermann (1 out of 1 patent)

Steven H Mersch (1 out of 34 patents)

4. Merrill Biel (1 patent)

9 patents: Sort by Forward Citations

1. 8267982 - Photodynamic cellular and acellular organism eradication utilizing a photosensitive material and surfactant (2012-09-18),

2. 8187278 - Photodynamic cellular and acellular organism eradication utilizing a photosensitive material and benzalkonium chloride (2012-05-29),

3. 7862219 - Optical fiber light diffusing device (2011-01-04),

4. 7070611 - Treatment device for topical photodynamic therapy and method of using same (2006-07-04),

5. 6623513 - Apparatus and method of photodynamic eradication of organisms utilizing pyrrolnitrin (2003-09-23),

6. 6251127 - Dye treatment solution and photodynamic therapy and method of using same (2001-06-26),

7. 6159236 - Expandable treatment device for photodynamic therapy and method of using (2000-12-12),

8. 6083487 - Methylene blue and toluidene blue mediated fluorescence diagnosis of (2000-07-04),

9. 6048359 - Spatial orientation and light sources and method of using same for (2000-04-11),

Company Overview

Advanced Photodynamic Technologies, Inc. is a leading biotechnology company specializing in the development and commercialization of photodynamic therapy (PDT) products. Our innovative technologies harness the power of light to treat a wide range of medical conditions, including cancer and dermatological disorders. With a focus on research and development, we are dedicated to revolutionizing the field of photodynamic therapy and improving patient outcomes.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#192 in Minneapolis, MN

#944 in Minnesota

#32,588 in US

Minneapolis, MN, United States of America

Advanced Photodynamic Technologies, Inc.

Forward Citations = 515

3 inventors:

Merrill A Biel (9 out of 15 patents)

Ronald R Zimmermann (1 out of 1 patent)

Steven H Mersch (1 out of 34 patents)

4. Merrill Biel (1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Advanced Photodynamic Technologies, Inc.. Retrieved from https://idiyas.com/company/advanced-photodynamic-technologies

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]

2 patents (CIPO):

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]

3 patents (EPO):

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]