Polymer composition for delivering substances in living organisms
US6030941A · kind A · utility
67Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Apr 30, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K47/549
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Polymeric compositions effective for delivering compounds in living organisms are described. The compositions include polypeptides which exhibit solubility in both hydrophilic and lipophilic environments by undergoing a reversible pH-dependent transition from a low-pH, lipophilic form to a high-pH, hydrophilic form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.