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Torcan Chemical Ltd

USPTO Granted Patents = 18

% Expired Patents = 5.6

Forward Citations = 78

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18 inventors (with patents filed for the assignee):

Clarke Slemon (7 out of 9 patents)

Yee-Fung Lu (6 out of 6 patents)

Jan Oudenes (5 out of 18 patents)

4. Raymond So (4 out of 4 patents)

5. Teng-Ko Ngooi (4 out of 4 patents)

6. Casimir G Antczak (4 out of 4 patents)

7. Bob Macel (3 out of 3 patents)

8. James L Tindall (2 out of 2 patents)

9. Hartford W Manning (2 out of 2 patents)

10. Kanjai Khumtaveeporn (1 out of 4 patents)

11. Wen-Lung Yeh (1 out of 3 patents)

12. Trina Cherryle Cosway (1 out of 1 patent)

13. Yong Tao (1 out of 4 patents)

14. Jeffry D McGolrick (1 out of 1 patent)

15. Dan To (1 out of 1 patent)

18 patents: Sort by Forward Citations

1. 6677453 - Production of polymorphic forms I and II of finasteride by complexation with group I or II metal salts (2004-01-13),

2. 6271005 - Enzymatic resolution of aminotetralins (2001-08-07),

3. 6204383 - Processes for preparing sildenafil (2001-03-20),

4. 6048981 - Magnesium omeprazole and process for its preparation (2000-04-11),

5. 5981757 - Nizatidine preparation (1999-11-09),

6. 5783702 - Preparation of cisapride (1998-07-21),

7. 5734083 - Sertraline polymorph (1998-03-31),

8. 5700945 - Process for preparing nizatidine (1997-12-23),

9. 5684177 - Misoprostol (1997-11-04),

10. 5665884 - Preparation of cisapride (1997-09-09),

11. 5585387 - Prepration of cisapride (1996-12-17),

12. 5541335 - Process for preparing nizatidine (1996-07-30),

13. 5470983 - Preparation of omeprazole and lansoprazole, and intermediates useful (1995-11-28),

14. 5374730 - Preparation of omeprazole and lansoprazole (1994-12-20),

15. 5371240 - Process for the preparation of pure thiophene derivatives (1994-12-06),

Torcan Chemical Ltd is a Canadian company based in Aurora, specializing in the development and manufacturing of high-quality chemical products. The organization focuses on providing innovative solutions for various industries, including pharmaceuticals, agriculture, and specialty chemicals. With a commitment to research and development, Torcan aims to enhance product performance and sustainability, leveraging advanced technologies to meet the evolving needs of its global clientele.

Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Oct 6 2026

18 Patents

#7 in Aurora

#821 in Canada

#34,187 in the World

Torcan Chemical Ltd

Forward Citations = 78

18 inventors:

Clarke Slemon (7 out of 9 patents)

Yee-Fung Lu (6 out of 6 patents)

Jan Oudenes (5 out of 18 patents)

4. Raymond So (4 out of 4 patents)

5. Teng-Ko Ngooi (4 out of 4 patents)

Please report any incorrect information to [email protected]

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