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Brantford, Canada

Apotex Pharmachem Inc.

USPTO Granted Patents = 50

% Expired Patents = 86.0

EPO Patents = 2

Forward Citations = 128

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59 inventors (with patents filed for the assignee):

Bhaskar Reddy Guntoori (17 out of 22 patents)

Daqing Che (14 out of 24 patents)

Yajun Zhao (12 out of 19 patents)

4. Gamini Weeratunga (12 out of 33 patents)

5. Stephen E Horne (12 out of 24 patents)

6. Zhi-Xian Wang (12 out of 15 patents)

7. Allan W Rey (11 out of 30 patents)

8. Fan Wang (8 out of 9 patents)

9. K S Keshava Murthy (6 out of 13 patents)

10. Carlos Zetina-Rocha (5 out of 7 patents)

11. Mohammed Abdul Raheem (4 out of 7 patents)

12. Prabhudas Bodhuri (4 out of 12 patents)

13. David A Stradiotto (4 out of 5 patents)

14. Probal Kanti Datta (4 out of 6 patents)

15. Uma Kotipalli (4 out of 5 patents)

Core Competencies:

Polymorphic Forms

Drug Synthesis

Pharmaceutical Processes

Atorvastatin

Esomeprazole

Rifaximin

Cabergoline

Zonisamide

Efavirenz

Lapatinib

Oxathiolane Derivatives

Flecainide

50 patents: Sort by Forward Citations

1. 9533949 - Processes for the preparation of 3-alkyl indoles (2017-01-03),

2. 9382272 - Methods of making lubiprostone and intermediates thereof (2016-07-05),

3. 9359374 - Polymorphic forms of rifaximin (2016-06-07),

4. 9034904 - Forms of dexlansoprazole and processes for the preparation thereof (2015-05-19),

5. 8993579 - Polymorphic forms of Lapatinib ditosylate and processes for their preparation (2015-03-31),

6. 8952154 - Process for the preparation of lapatinib and its ditosylate salt (2015-02-10),

7. 8883795 - Polymorphic forms of Rifaximin (2014-11-11),

8. 8835638 - 1,3-Oxathiolane derivatives, process for the preparation of 1,3-Oxathiolane derivatives and intermediates thereof (2014-09-16),

9. 8765976 - Polymorphic forms of Warfarin potassium and preparations thereof (2014-07-01),

10. 8563733 - Process for the preparation of esomeprazole and salts thereof (2013-10-22),

11. 8471011 - Preparation of acid addition salts of amine bases by solid phase—gas phase reactions (2013-06-25),

12. 8378143 - Methods of making Efavirens and intermediates thereof (2013-02-19),

13. 8309547 - Processes for the preparation of rivaroxaban and intermediates thereof (2012-11-13),

14. 8188300 - Atorvastatin calcium propylene glycol solvates (2012-05-29),

15. 8143400 - Process for the preparation and purification of cis-2-methylspiro(1,3-oxathiolane-5,3')quiniclidine hydrochloride (2012-03-27),

Company Overview

Apotex Pharmachem Inc., based in Brantford, Canada, specializes in the development and manufacturing of pharmaceutical products, focusing on innovative drug synthesis and polymorphic forms. The company is recognized for its expertise in key therapeutic areas, including atorvastatin, esomeprazole, rifaximin, cabergoline, and zonisamide. With a commitment to advancing pharmaceutical processes, Apotex Pharmachem plays a vital role in enhancing the accessibility and effectiveness of medications in the global market.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

50 Patents

#1 in Brantford

#280 in Canada

#14,024 in the World

Brantford, Canada

Apotex Pharmachem Inc.

Forward Citations = 128

59 inventors:

Bhaskar Reddy Guntoori (17 out of 22 patents)

Daqing Che (14 out of 24 patents)

Yajun Zhao (12 out of 19 patents)

4. Gamini Weeratunga (12 out of 33 patents)

5. Stephen E Horne (12 out of 24 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Apotex Pharmachem Inc.. Retrieved from https://idiyas.com/company/apotex-pharmachem

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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