Injectable biodegradable particles
US9526804B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2012 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Jan 25, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
According to an aspect of the invention, injectable polymeric particles are provided that contain a copolymer that contains a hydroxy-acid-based repeat unit selected from a mono(hydroxy acid) unit and a poly(hydroxy acid) unit, an alkyl-ether-based repeat unit selected from a mono(alkyl ether) unit and a poly(alkyl ether) unit, and an acid-based repeat unit selected from a unit comprising multiple carboxylic acid groups and a derivative thereof. Other aspects of the invention pertain to methods of making such particles. Still other aspects of the invention pertain to injectable compositions that comprise such particles and to methods of treatment that employ such injectable compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.