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. 30, 1988
Filed:
Jan. 21, 1987
Applicant:
Inventors:
Geoffrey B Cox, Wilmington, DE (US);
Anthony Atkinson, Salisbury, GB;
Peter A Edwardson, Salisbury, GB;
Michael D Scawen, Salisbury, GB;
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B01D / ; B01J / ;
U.S. Cl.
CPC ...
428403 ; 428405 ; 428406 ; 428407 ; 210656 ; 210679 ; 502401 ; 502407 ; 502415 ;
Abstract
A chromatographic packing useful for the separation of oligonucleotides is disclosed. The packing includes an insert porous support particle and a silane bonded phase comprising a weak anion exchange group in close proximity to at least one polar non-ionic group.