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:
Dec. 07, 1999
Filed:
Jun. 30, 1997
Applicant:
Inventors:
Mahlon Robert Derolf, Pottstown, PA (US);
Leonard Harris Smiley, Rydal, PA (US);
Reinhard Herbert Witt, Wyncote, PA (US);
Assignee:
Bio-Technical Resources, Manitowoc, WI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J / ; B01J / ;
U.S. Cl.
CPC ...
502407 ; 502-8 ; 502-9 ; 502406 ; 502414 ; 501 12 ;
Abstract
The invention is directed to an unsintered spherical adsorbent particle composition having high mechanical strength and controlled pore size distribution, comprising finely divided silica hydrogel particles bonded together with a silica or metal oxide sol.