Inventor
ROBERT CHAPMAN
Inventor
US
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
A61Kprimary
A61KPreparations for medical, dental or toiletry purposes33%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations33%
C07DHeterocyclic compounds33%
PatentTitleYear
12,060,361Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone202411,384,091Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone202211,236,098Process for preparing oxycodone hydrochloride having less than 25 ppm 14-hydroxycodeinone2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2024Patents assigned to PURDUE PHARMA LP (3)· patent assignee history
2022–2024Patents assigned to Purdue Pharmaceuticals LP (3)· patent assignee history
2022–2024Patents assigned to RHODES TECH (3)· patent assignee history
2022–2024Based in US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PURDUE PHARMA LP | 3 | 2022–2024 |
| Purdue Pharmaceuticals LP | 3 | 2022–2024 |
| RHODES TECH | 3 | 2022–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| US | 3 | 2022–2024 |