Patents
US 10507206 B2: Oral formulations and lipophilic salts of methylnaltrexone
- Granted
- 2019-12-17
- Filed
- 2019-06-24 application 16450157
- Type
- Utility · 25 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present invention provides compositions comprising methylnaltrexone or a salt thereof, and compositions and formulations thereof, for oral administration.
Source: PVGPATDIS, file of 2026-04-10 (ipg191217.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Wyeth, LLC 476 patents | US company or organization | Madison, NJ | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Syed M. Shah | Delray Beach, FL | 72 | PVGPATDIS, file of 2026-04-10 | |
| Christopher Diorio | Campbell Hall, NY | 17 | PVGPATDIS, file of 2026-04-10 | |
| Eric C. Ehrnsperger | New City, NY | 6 | PVGPATDIS, file of 2026-04-10 | |
| Xu Meng | San Diego, CA | 7 | PVGPATDIS, file of 2026-04-10 | |
| Kadum A. Al Shareffi | Greensboro, NC | 8 | PVGPATDIS, file of 2026-04-10 | |
| Jonathan Marc Cohen | Rochester, NY | 8 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61K | Preparations for medical, dental or toiletry purposes | A61K31/485 | PVGPATDIS, file of 2026-04-10 |
| A61P | Specific therapeutic activity of chemical compounds or medicinal preparations | A61P1/00 | PVGPATDIS, file of 2026-04-10 |
| C07D | Heterocyclic compounds | C07D489/08 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2019-06-25 | Assignment Assignment of assignor's interest | MENG, XU signed 2011-10-10 SHAH, SYED M. signed 2011-11-10 COHEN, JONATHAN MARC signed 2011-11-16 DIORIO, CHRISTOPHER RICHARD signed 2011-11-16 EHRNSPERGER, ERIC C. signed 2011-11-16 AL SHAREFFI, KADUM A. signed 2011-11-17 | WYETH, LLC MADISON, NJ | 49574/923 | ECORSEXC, file of 2026-09-25 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.