Cationic betaine precursors to zwitterionic betaines having controlled biological properties
US8268301B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 19, 2008 |
| Grant date | Sep 18, 2012 |
| Priority date | — |
| Expiry date | Dec 31, 2030 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/5426
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Cationic polymers hydrolyzable to zwitterionic polymers, monomers for making the cationic polymers, surfaces that include the polymers, therapeutic agent delivery systems that include the cationic polymers, methods for administering a therapeutic agent using the delivery systems, and methods for making and using the cationic polymers, monomers, surfaces, and therapeutic agent delivery systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.