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. 29, 2000
Filed:
Apr. 30, 1997
Applicant:
Inventors:
James E Summerton, Corvallis, OR (US);
Dwight D Weller, Corvallis, OR (US);
Assignee:
AVI BioPharma, Inc., Portland, OR (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N / ;
U.S. Cl.
CPC ...
514-2 ; 514 12 ; 514772 ; 514773 ; 514 21 ;
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.