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:
Aug. 10, 1999
Filed:
Jun. 08, 1992
Applicant:
Inventors:
Mark S Chagnon, Pelham, NH (US);
John R Ferris, Newburyport, MA (US);
Michelle J Carter, Derry, NH (US);
Tracy J Hamilton, Hudson, NH (US);
Maria A Gray, Derry, NH (US);
Assignee:
Binax NH, Inc., Atkinson, NH (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; C12Q / ; C07F / ; C01G / ;
U.S. Cl.
CPC ...
436526 ; 435-6 ; 556 52 ; 556 56 ; 428407 ; 427216 ; 252 / ; 252 / ; 252 6256 ;
Abstract
Inorganic oxides of substantially uniform particle size distribution are prepared by contacting aqueous solutions of an inorganic salt and an inorganic base across a porous membrane wherein the membrane contains a plurality of pores which allows for precipitation of a substantially mono-disbursed size inorganic oxide particles on one side of the membrane and precipitation of a salt of the corresponding base on a second side of the membrane.