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:
Nov. 16, 1999
Filed:
Apr. 23, 1998
Applicant:
Inventors:
Melvin Dorin, Mountain View, CA (US);
Paul J Voelker, Fremont, CA (US);
Assignee:
Beckman Coulter, Inc., Fullerton, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C13F / ; G01N / ; B04B / ;
U.S. Cl.
CPC ...
127 29 ; 422 72 ; 422101 ; 494 27 ;
Abstract
A stable self-forming density gradient is created by applying a centrifugal field to a solution that contains 27-33% Percoll (v/v) and 36-44% sugar (w/w). This density gradient is stable for several hours, allowing separation of low sedimentation particles, such as subcellular particles.