The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2005
Filed:
Dec. 23, 2002
Kwang Nho, Walnut Creek, CA (US);
Hyun Chang-min, Seoul, KR;
Jung-hun Lee, Kyonggi-do, KR;
In-kyung Kim, Seoul, KR;
Young-kyoung Pak, Seoul, KR;
Kwang Nho, Walnut Creek, CA (US);
Hyun Chang-min, Seoul, KR;
Jung-Hun Lee, Kyonggi-do, KR;
In-Kyung Kim, Seoul, KR;
Young-Kyoung Pak, Seoul, KR;
SunBio, Inc., , KR;
Abstract
The present invention relates to novel hexa-arm polyethylene glycol (6-arm PEG) and its derivatives. The core of 6-arm PEG derivatives is sorbitol and the end groups can be derivatized into many different reactive functionalities that are useful in conjugating with many different targets. The present invention also provides a biodegradable polymeric hydrogel-forming composition comprising the 6-arm PEG and its derivatives, and methods of using such 6-arm PEG derivatives as surgical or biological implants or sealants.