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Trademarks = 3

Forward Citations = 384

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5 inventors (with patents filed for the assignee):

H Craig Dees (10 out of 31 patents)

Eric A Wachter (7 out of 48 patents)

Walter G Fisher (6 out of 17 patents)

4. John T Smolik (5 out of 13 patents)

5. Timothy C Scott (2 out of 31 patents)

12 patents: Sort by Forward Citations

1. 6541223 - Method for enhanced protein stabilization and for production of cell lines useful for production of such stabilized proteins (2003-04-01),

2. 6525862 - Methods and apparatus for optical imaging (2003-02-25),

3. 6519076 - Methods and apparatus for optical imaging (2003-02-11),

4. 6495360 - Method for enhanced protein stabilization and for production of cell lines useful for production of such stabilized proteins (2002-12-17),

5. 6493570 - Method for improved imaging and photodynamic therapy (2002-12-10),

6. 6468777 - Method for enhanced protein stabilization and for production of cell lines useful for production of such stabilized proteins (2002-10-22),

7. 6451597 - Method for enhanced protein stabilization and for production of cell lines useful for production of such stabilized proteins (2002-09-17),

8. 6331286 - Methods for high energy phototherapeutics (2001-12-18),

9. 6042603 - Method for improved selectivity in photo-activation of molecular agents (2000-03-28),

10. 5998597 - Method for improved selectivity in photo-activation of molecular agents (1999-12-07),

11. 5832931 - Method for improved selectivity in photo-activation and detection of (1998-11-10),

12. 5829448 - Method for improved selectivity in photo-activation of molecular agents (1998-11-03),

Photogen, Inc. is a technology company based in Knoxville, TN, specializing in advanced imaging solutions and photonics. The organization focuses on the development and manufacturing of innovative products that enhance visual experiences across various applications, including medical imaging, industrial inspection, and consumer electronics. With a commitment to research and development, Photogen aims to push the boundaries of optical technology, contributing to advancements in fields that rely on precise imaging and light manipulation.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

12 Patents

#22 in Knoxville, TN

#271 in Tennessee

#25,540 in US

#48,129 in the World

Knoxville, TN, United States of America

Photogen, Inc.