Patent · US Active

Biodegradable cationic polymers

US7700541B2 · kind B2 · utility

15Cited by

15References

23Claims

0Family size

Assignee

NITTO DENKO CORPORATION · JP

Inventors

Yasunobu Tanaka · Osaka, JP
Gang Zhao · Oceanside, US
Lei Yu · Huangguan, CN

Key dates

Filing date	Apr 2, 2007
Grant date	Apr 20, 2010
Priority date	—
Expiry date	Jul 29, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/704
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Polymers comprising a polyethylenimine having a molecular weight less than 600 Daltons, a biodegradable group, and a relatively hydrophobic group that are useful for the delivery of bioactive agents to cells.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.