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:
Apr. 22, 2003
Filed:
Feb. 08, 2001
Applicant:
Inventors:
Michael Taagaard, Horsholm, DK;
Flemming Aas, Soborg, DK;
Assignee:
Radiometer Medical A/S, Bronshoj, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 2/7401 ;
U.S. Cl.
CPC ...
G01N 2/7401 ;
Abstract
The reference electrode comprises an electrode plug and a chamber ( ) closed at the rear containing an electrolyte. The chamber ( ) has an aperture ( ) covered by a membrane ( ) of a material permitting diffusion of ions therethrough, but whose surface is closed for proteins and similar macromolecular substances. A diffusion tight diaphragm element ( ) having a through-going orifice ( ) located radially within the aperture is situated on the outer side of the ion diffusion membrane ( ) relative to the chamber, and the orifice ( ) is smaller than the aperture ( ).