Patents
US 10555912 B2: Use of polymeric excipients for lyophilization or freezing of particles
- Granted
- 2020-02-11
- Filed
- 2018-08-21 application 16107419
- Type
- Utility · 46 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Provided herein are use of polymeric excipients, specifically polyvinyl alcohols, optionally in conjunction with sugars, as cryoprotectants to prevent aggregation of PEG-containing particles. Also provided are PEG-containing particles comprising such polymeric excipients.
Source: PVGPATDIS, file of 2026-04-10 (ipg200211.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Abraxis BioScience, LLC 72 patents | US company or organization | Summit, NJ | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Willard Foss | San Diego, CA | 8 | PVGPATDIS, file of 2026-04-10 | |
| Rajesh R. Shinde | Waltham, MA | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61K | Preparations for medical, dental or toiletry purposes | A61K9/5138 | PVGPATDIS, file of 2026-04-10 |
| A61P | Specific therapeutic activity of chemical compounds or medicinal preparations | A61P35/00 | 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 |
|---|---|---|---|---|---|
| 2018-10-01 | Assignment Assignment of assignor's interest | FOSS, WILLARD signed 2014-11-13 SHINDE, RAJESH signed 2014-11-20 | ABRAXIS BIOSCIENCE, LLC SUMMIT, NJ | 47019/350 | 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.