Patents
US 11155679 B2: Poloxamer composition free of long circulating material and methods for production and uses thereof
- Granted
- 2021-10-26
- Filed
- 2019-10-23 application 16660915
- Type
- Utility · 28 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Provided herein are long circulating material free (LCMF) poloxamer compositions and uses thereof. In particular, provided are LCMF poloxamer 188 compositions and uses thereof. Also provided are supercritical fluid extraction (SFE) methods and high pressure (subcritical) methods for preparing poloxamer compositions, particularly the LCMF poloxamer compositions.
Source: PVGPATDIS, file of 2026-04-10 (ipg211026.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| LifeRaft Biosciences, Inc. 2 patents | US company or organization | Mount Pleasant, SC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| R. Martin Emanuele | San Diego, CA | 7 | PVGPATDIS, file of 2026-04-10 | |
| Mannarsamy Balasubramanian | Roswell, GA | 4 | PVGPATDIS, file of 2026-04-10 | |
| Stewart SMITH | San Diego, CA | 7 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C08G | Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds | C08G65/30 | PVGPATDIS, file of 2026-04-10 |
| A61K | Preparations for medical, dental or toiletry purposes | A61K9/0019 | PVGPATDIS, file of 2026-04-10 |
| A61P | Specific therapeutic activity of chemical compounds or medicinal preparations | A61P1/12 | 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 |
|---|---|---|---|---|---|
| 2025-03-21 | Assignment Assignment of assignor's interest | SAVARA INC. signed 2018-05-17 | LIFERAFT BIOSCIENCES, INC. MT. PLEASANT, SC | 70583/497 | ECORSEXC, file of 2026-09-25 |
| 2025-03-17 | Assignment Assignment of assignor's interest | SMITH, STEWART signed 2016-06-09 | MAST THERAPEUTICS, INC. SAN DIEGO, CA | 70529/94 | ECORSEXC, file of 2026-09-25 |
| 2025-03-17 | Assignment Assignment of assignor's interest | EMANUELE, R. MARTIN signed 2015-06-18 BALASUBRAMANIAN, MANNARSAMY signed 2015-06-25 | MAST THERAPEUTICS, INC. SAN DIEGO, CA | 70529/76 | 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.