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. 09, 1991
Filed:
Oct. 01, 1987
Applicant:
Inventors:
Albert E Chu, Hillsborough, CA (US);
Peter K Chun, South San Francisco, CA (US);
Siu C Yeung, San Mateo, CA (US);
Assignee:
E-Y Laboratories, Inc., San Mateo, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
435-71 ; 435-792 ; 435805 ; 435810 ; 436518 ; 436525 ; 436528 ; 436531 ; 436165 ; 436170 ; 436807 ; 436808 ; 422 55 ; 422 56 ; 422 58 ; 422101 ;
Abstract
Am improved device and method for analyte assay in liquid samples, wherein a porous membrane with an immobilized receptor which is capable of directly or indirectly binding to the analyte is separated from a body of absorbent material capable of absorbing the liquid sample by a septum capable of substantially separating the porous membrane from the absorbent body while substantially directing the flow of the liquid sample from the porous membrane to the absorbent body.