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:
Sep. 21, 1999
Filed:
Jun. 07, 1995
Applicant:
Inventors:
Samuel O Sowemimo-Coker, Arcadia, CA (US);
Nagender Yerram, So. Pasadena, CA (US);
Raymond P Goodrich, Jr, Pasadena, CA (US);
Matthew S Platz, Columbus, OH (US);
Assignee:
Baxter International Inc., Deerfield, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
A01N / ; C12N / ;
U.S. Cl.
CPC ...
435-2 ; 4351731 ; 4351733 ;
Abstract
Viral, bacterial and parasitic contaminants in blood and cell culture containing compositions are inactivated by adding a photosensitizer and a blocking agent to the composition and irradiating the resulting mixture with electromagnetic radiation. Blocking agents reduce photolysis of the photosensitizer by mechanisms not involving the quenching of reactive oxygen species. The blocking agents reduce photolysis which occurs by ring opening. Preferred photosensitizers are quinoline or quinolone.