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Wilson, NC, United States of America

Purdue Pharmaceuticals L.p.

USPTO Granted Patents = 77

% Expired Patents = 23.4

Forward Citations = 1,295

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12 inventors (with patents filed for the assignee):

Haiyong Hugh Huang (35 out of 63 patents)

William H McKenna (34 out of 41 patents)

Richard O Mannion (34 out of 43 patents)

4. Edward P O'Donnell (34 out of 42 patents)

5. Christopher D Breder (32 out of 57 patents)

6. Curtis Wright (32 out of 86 patents)

7. Benjamin Oshlack (32 out of 157 patents)

8. Donald Kyle (10 out of 341 patents)

9. Lonn S Rider (10 out of 19 patents)

10. Robert Chapman (10 out of 18 patents)

11. Qi Hong (10 out of 20 patents)

12. Robert J Kupper (10 out of 31 patents)

Core Competencies:

Tamper Resistant Dosage Forms

Oxycodone Compositions

Pharmaceutical Formulation

Gelling Agent

Controlled Release

Opioid Agonist

Opioid Antagonist

Hydrochloride Preparation

Encased Dosage Forms

14-Hydroxycodeinone

Pharmaceutical Composition

Preparation Process

77 patents: Sort by Forward Citations

1. 12396955 - Tamper resistant dosage forms (2025-08-26),

2. 12280152 - Tamper resistant dosage forms (2025-04-21),

3. 12246094 - Tamper resistant dosage forms (2025-03-11),

4. 12060361 - Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone (2024-08-13),

5. 11964056 - Tamper resistant dosage forms (2024-04-23),

6. 11938225 - Tamper resistant dosage forms (2024-03-26),

7. 11904055 - Tamper resistant dosage forms (2024-02-20),

8. 11826472 - Tamper resistant dosage forms (2023-11-28),

9. 11384091 - Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone (2022-07-12),

10. 11304909 - Tamper resistant dosage forms (2022-04-19),

11. 11304908 - Tamper resistant dosage forms (2022-04-19),

12. 11298322 - Tamper resistant dosage forms (2022-04-12),

13. 10696684 - Process for preparing oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone (2020-06-30),

14. 10689389 - Process for preparing oxycodone compositions (2020-06-23),

15. 10407434 - Process for preparing oxycodone compositions (2019-09-10),

Company Overview

Purdue Pharmaceuticals L.P., headquartered in Wilson, NC, specializes in the development and manufacturing of innovative pharmaceutical formulations. The company is recognized for its focus on tamper-resistant dosage forms and compositions involving oxycodone, addressing critical needs in pain management. Purdue's research encompasses controlled release technologies, gelling agents, and formulations that include both opioid agonists and antagonists, contributing to advancements in safe and effective therapeutic options.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

77 Patents

#2 in Wilson, NC

#124 in North Carolina

#4,785 in US

#9,761 in the World

Wilson, NC, United States of America

Purdue Pharmaceuticals L.p.

Forward Citations = 1,295

12 inventors:

Haiyong Hugh Huang (35 out of 63 patents)

William H McKenna (34 out of 41 patents)

Richard O Mannion (34 out of 43 patents)

4. Edward P O'Donnell (34 out of 42 patents)

5. Christopher D Breder (32 out of 57 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Purdue Pharmaceuticals L.p.. Retrieved from https://idiyas.com/company/purdue-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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