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. 14, 2000
Filed:
Aug. 06, 1998
Applicant:
Inventors:
Michael C Flickinger, St. Paul, MN (US);
Michael J Robichaud, Minneapolis, MN (US);
John E Morris, Minneapolis, MN (US);
Colleen M Griffith, St. Paul, MN (US);
Michael J Annen, Monroeville, PA (US);
Peter W Carr, Minneapolis, MN (US);
Christopher Dunlap, St. Paul, MN (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
210263 ; 210650 ; 210661 ; 210670 ; 210691 ; 210905 ; 2105021 ;
Abstract
Porous Zirconia particles of specific gravity of 2.5-3.5 g/cm.sup.3 and mean particle sizes of 30-400 .mu.m can be synthesized using oil emulsion methods from colloids and used for protein adsorption in stable expanded beds. Expanded beds of less than 1.0 settled bed height to diameter (approximately 10 ml bed volume) are stable at linear fluid velocities of at least about 100 cm/hour.