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, 2010
Filed:
Jun. 11, 2003
Applicants:
Ulrik Darling Larsen, Holte, DK;
Preben Merrild Elkjær, Copenhagen, DK;
Inventors:
Ulrik Darling Larsen, Holte, DK;
Preben Merrild Elkjær, Copenhagen, DK;
Assignee:
Chempaq A/S, Copenhagen O, DK;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 15/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A particle characterization apparatus in which particles suspended in a liquid pass through an orifice or aperture for detection and characterization of the particles utilizing impedance determination. In particular, the apparatus includes a membrane of a polymer as a base material for precision machining of a sub-millimeter orifice. Forming the orifice in a polymer membrane facilitates the construction of a single use cartridge for haematology analysis due to low material and production costs.