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:
Jun. 02, 1992
Filed:
Apr. 09, 1991
Applicant:
Inventors:
Gerald G Vurek, Mountain View, CA (US);
Lokanathan M Iyer, Edmonds, WA (US);
James R Scott, Bothell, WA (US);
Assignee:
Abbott Laboratories, Abbott Park, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
G02B / ; G02B / ;
U.S. Cl.
CPC ...
385129 ; 385 12 ; 128634 ;
Abstract
A O.sub.2 /CO.sub.2 /pH compound gas probe comprising a single optical waveguide and a method for making the same. The optical waveguide carries light signals at different wavelengths for monitoring oxygen concentration, carbon dioxide concentration, and pH levels. The probe is designed so that light signals used to monitor carbon dioxide concentration are optically prevented from impinging on the sensor used to monitor the pH level.