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Qlt Phototherapeutics, Inc.

USPTO Granted Patents = 15

CIPO Patents = 1

Trademarks = 2

Forward Citations = 526

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32 inventors (with patents filed for the assignee):

Julia G Levy (10 out of 46 patents)

Anna M Richter (6 out of 25 patents)

David W Hunt (4 out of 7 patents)

4. Modestus O Obochi (4 out of 5 patents)

5. Gustav Huber (3 out of 6 patents)

6. Guillermo O Simkin (3 out of 6 patents)

7. David H Dolphin (3 out of 42 patents)

8. Agnes How-Ching Chan (3 out of 6 patents)

9. H Andrew Strong (2 out of 13 patents)

10. Mario Fsadni (2 out of 4 patents)

11. Joseph Yan (2 out of 3 patents)

12. Bushra J Agha (1 out of 3 patents)

13. Kalidas Madhavrao Kale (1 out of 3 patents)

14. Ethan D Sternberg (1 out of 16 patents)

15. Ashok Jain (1 out of 4 patents)

15 patents: Sort by Forward Citations

1. 6107325 - Green porphyrins as immunomodulators (2000-08-22),

2. 6096776 - Green porphyrins as immunomodulators (2000-08-01),

3. 6086558 - Balloon catheter for photodynamic therapy (2000-07-11),

4. 6074666 - Liposome compositions of porphyrin photosensitizers (2000-06-13),

5. 6043237 - Use of photodynamic therapy for prevention of secondary cataracts (2000-03-28),

6. 6013053 - Balloon catheter for photodynamic therapy (2000-01-11),

7. 6008241 - Green porphyrins as immunomodulators (1999-12-28),

8. 5945439 - Method for destroying or inhibiting growth of unwanted cells or tissues (1999-08-31),

9. 5929105 - Ethylene glycol esters as photoactive agents (1999-07-27),

10. 5910510 - Vision through photodynamic therapy of the eye (1999-06-08),

11. 5883246 - Synthesis of polypyrrolic macrocycles from meso-substituted tripyrrane (1999-03-16),

12. 5882328 - Method to prevent transplant rejection (1999-03-16),

13. 5834503 - Methods to treat arterial plaque (1998-11-10),

14. 5756541 - Vision through photodynamic therapy of the eye (1998-05-26),

15. 5707608 - Methods of making liposomes containing hydro-monobenzoporphyrin (1998-01-13),

QLT Phototherapeutics, Inc. is a leader in developing innovative photodynamic therapies for various medical conditions. With a focus on utilizing light-activated drugs to target specific cells, QLT uses cutting-edge technology to provide effective treatment options for patients. The company is dedicated to advancing the field of phototherapy and improving patient outcomes.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

15 Patents

#117 in

#941 in Canada

#38,649 in the World

Qlt Phototherapeutics, Inc.

Forward Citations = 526

32 inventors:

Julia G Levy (10 out of 46 patents)

Anna M Richter (6 out of 25 patents)

David W Hunt (4 out of 7 patents)

4. Modestus O Obochi (4 out of 5 patents)

5. Gustav Huber (3 out of 6 patents)

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