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For the Inventor, By the Inventor

Henderson, New Zealand

Douglas Pharmaceuticals Limited

USPTO Granted Patents = 19

% Expired Patents = 10.5



Trademarks = 4

Forward Citations = 70

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29 inventors (with patents filed for the assignee):

goldMedal Peter William Surman (12 out of 13 patents)

silverMedal Paul William Glue (11 out of 12 patents)

bronzeMedal Natalie June Medlicott (11 out of 12 patents)

4.  Ian Hampson (4 out of 6 patents)

5.  Lynne Hampson (4 out of 6 patents)

6.  Andrew David Abell (2 out of 2 patents)

7.  James Morriss Coxon (2 out of 2 patents)

8.  Matthew Alan Jones (2 out of 2 patents)

9.  Stephen Brian McNabb (2 out of 2 patents)

10.  Axel Thomas Neffe (2 out of 2 patents)

11.  Steven Geoffrey Aitken (2 out of 2 patents)

12.  Blair Gibb Stuart (2 out of 2 patents)

13.  Janna Marie Nikkel (2 out of 2 patents)

14.  Joanna Kimberley Duncan (2 out of 2 patents)

15.  Mutita Klanchantra (2 out of 2 patents)


19 patents:

1. 12678439 - Lopinavir and ritonavir for the treatment of cervix disorders (2026-07-14),
2. 12622914 - Pharmaceutical rectal suppository compositions of 6-thioguanine, methods of treatment and/or methods of manufacturing (2026-05-12),
3. 12611386 - Extended release pharmaceutical formulation (2026-04-28),
4. 12472146 - Extended release pharmaceutical formulation (2025-11-18),
5. 12414994 - Compositions comprising lopinavir and treatment of conditions (2025-09-16),
6. 12350378 - Extended release pharmaceutical formulation and methods of treatment (2025-07-08),
7. 12128140 - Extended release pharmaceutical formulation (2024-10-29),
8. 12090123 - Extended release pharmaceutical formulation (2024-09-17),
9. 12083120 - Treatments (2024-09-10),
10. 11738024 - Lopinavir and ritonavir for the treatment of cervix disorders (2023-08-29),
11. 11471416 - Extended release pharmaceutical formulation and methods of treatment (2022-10-18),
12. 11471415 - Extended release pharmaceutical formulation and methods of treatment (2022-10-18),
13. 11045424 - Extended release pharmaceutical formulation (2021-06-29),
14. 10869838 - Extended release pharmaceutical formulation (2020-12-22),
15. 10744094 - Extended release pharmaceutical formulation (2020-08-18),
Company Overview
Douglas Pharmaceuticals Limited is a New Zealand-based company specializing in the development and manufacturing of pharmaceutical products. The organization focuses on a diverse range of therapeutic areas, including prescription medications and over-the-counter products. With a commitment to quality and innovation, Douglas Pharmaceuticals leverages advanced research and technology to enhance healthcare solutions. The company serves both domestic and international markets, contributing to the global pharmaceutical landscape.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Douglas Pharmaceuticals Limited USPTO Patent Assignee Logo
19 Patents

#1 in Henderson

#36 in New Zealand

#32,693 in the World

Henderson, NZ
Henderson, New Zealand

Douglas Pharmaceuticals Limited

Forward Citations = 70

29 inventors:

goldMedal Peter William Surman (12 out of 13 patents)

silverMedal Paul William Glue (11 out of 12 patents)

bronzeMedal Natalie June Medlicott (11 out of 12 patents)

4.  Ian Hampson (4 out of 6 patents)

5.  Lynne Hampson (4 out of 6 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Douglas Pharmaceuticals Limited. Retrieved from https://idiyas.com/company/douglas-pharmaceuticals

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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