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. 25, 1996
Filed:
May. 23, 1995
Applicant:
Inventors:
Donald F Hagen, Woodbury, MN (US);
Paul E Hansen, Lake Elmo, MN (US);
Craig G Markell, White Bear, MN (US);
Assignee:
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 2101983 ; 2105021 ; 210505 ;
Abstract
A solid phase extraction or chromatographic medium comprises a porous nonwoven fibrous matrix comprising at least one of polytetrafluoroethylene and blown microfibers, and sorptive or reactive hydrophobic siliceous molecular sieve particulates enmeshed in said matrix, the ratio of molecular sieves to matrix being in the range of 40:1 to 1:40.
Quick Actions:
Hagen, Donald. (1996). Composite membranes for solid phase extractions and reactions (U.S. Patent No. 5529686). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5529686
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile