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:
Jul. 06, 1982
Filed:
Nov. 05, 1980
Applicant:
Inventor:
David D Mundschenk, Minneapolis, MN (US);
Assignee:
R & D Systems, Inc., Minneapolis, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
324 / ; 235 / ;
Abstract
A control blood platelet preparation containing a population of platelets of known count range, electronic volume and electronic volume size distribution is used to check the threshold setting calibrations of an electronic particle counter. The control preparation preferably contains blood platelets from whole blood taken from animal species which are non-infectious with respect to human hepatitis, ideally animals of the bovine and parcine species.