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:
Mar. 10, 1987
Filed:
Dec. 23, 1983
Applicant:
Inventors:
Claude Borer, Hunenberg, CH;
Kurt Schildknecht, Hunenberg, CH;
Assignee:
Hoffmann-La Roche Inc., Nutley, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356246 ; 356428 ; 356436 ; 356440 ;
Abstract
A method for the photometric analysis of a liquid sample in which different path lengths of the sample are analyzed photometrically. In order to reduce the time needed for analyzing a large number of samples, the analysis is carried out with a light beam which is generated by an immobile light source; the sample is introduced into a cuvette which has at least two regions with different cross-section lengths; and the cuvette is continuously moved along a circular path in such a manner that in the course of the photometric measurement the light beam passes through at least two of the regions in succession.