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:
Oct. 31, 1995
Filed:
Apr. 22, 1994
Applicant:
Inventors:
John A Singleton, Apex, NC (US);
Larry F Stikeleather, Raleigh, NC (US);
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
2101982 ; 210659 ; 422 70 ;
Abstract
A high pressure liquid chromatography injection system with two independently controlled valves and a pump is provided which permits the simultaneous and independent concentration and analysis of trace components using two different solvent systems.