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. 14, 1999
Filed:
Aug. 01, 1994
Applicant:
Inventor:
J Michael Ramsey, Knoxville, TN (US);
Assignee:
Lockheed Martin Energy Systems, Inc., Oak Ridge, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G10N / ; G10N / ;
U.S. Cl.
CPC ...
204451 ; 204601 ;
Abstract
A microchip apparatus and method provide fluidic manipulations for a variety of applications, including sample injection for microchip liquid chromatography. The microchip is fabricated using standard photolithographic procedures and chemical wet etching, with the substrate and cover plate joined using direct bonding. Capillary electrophoresis is performed in channels formed in the substrate. Injections are made by electro-osmotically pumping sample through the injection channel that crosses the separation channel, followed by a switching of the potentials to force a plug into the separation channel.
Published as:
CA2196429A1; WO9604547A1; AU3150895A; EP0775306A1; KR970705020A; MX9700845A; EP0775306A4; CN1168720A; JPH10507516A; US5858195A; AU701348B2; US6001229A; US6010607A; US6010608A; US6033546A; CN1052301C; CA2196429C; EP1162455A1; US2002008030A1; US6342142B1; EP0775306B1; US6475363B1; ATE227023T1; DK0775306T3; DE69528705D1; KR100369497B1; ES2185709T3; DE69528705T2; US2003150733A1; US2003205469A1; US2003205470A1; US2003226753A1; US2003226755A1; US2004007464A1; US2004009517A1; EP1382962A1; US2004137445A1; EP1162455B1; ATE374940T1; DE69535608D1; JP4023819B2; DE69535608T2;