For the Inventor, By the Inventor

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Wilson, NC, United States of America

Purdue Pharmaceuticals L.p.

USPTO Granted Patents = 77

Forward Citations = 1,290

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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 56 patents)

6. Curtis Wright (32 out of 86 patents)

7. Benjamin Oshlack (32 out of 157 patents)

8. Donald Kyle (10 out of 316 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 Hydrochloride

Pharmaceutical Formulation

Gelling Agent

Opioid Agonist

Opioid Antagonist

Oxycodone Compositions

Drug Formulation Process

Controlled Release Technology

Abuse Deterrent Formulations

Pharmaceutical Manufacturing

Dosage Form Development

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),

Purdue Pharmaceuticals L.P. is a pharmaceutical company that focuses on healthcare solutions. With a vision to improve patients' lives through innovative medicine, Purdue Pharmaceuticals specializes in developing and marketing prescription drugs for a wide range of therapeutic areas. Their commitment to research and development has led to numerous breakthroughs in pain management, oncology, and other therapeutic fields. With a strong dedication to patient care and safety, Purdue Pharmaceuticals remains a trusted name in the pharmaceutical industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

77 Patents

#2 in Wilson, NC

#117 in North Carolina

#4,598 in US

#9,395 in the World

Wilson, NC, United States of America

Purdue Pharmaceuticals L.p.

Forward Citations = 1,290

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 56 patents)

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