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, 1981
Filed:
May. 08, 1978
Applicant:
Inventors:
Dietrich W Lubbers, Dortmund, DE;
Norbert Opitz, Dortmund, DE;
Assignee:
Max-Planck-Gesellschaft zur Forderung der Wissenschaften e.V., Gottingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
356318 ; 356417 ; 356243 ; 422 83 ;
Abstract
An apparatus for an optical measurement of the concentration of substances ncluding at least one monochromator means, one photometer means and one optometric means. A further reference indicator means is added to the indicator means. This further indicator means changes the measuring light and will not be changed by the concentration of the substance to be measured.