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:
Sep. 03, 1996
Filed:
Mar. 10, 1995
Gary B Gordon, Saratoga, CA (US);
Scott A Conradson, Palo Alto, CA (US);
Kay Lichtenwalter, San Jose, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A method and apparatus for dispensing immobilized reactants onto substrates for use in generating a biological assay plate for detecting the presence of mobile reactants that bind to the immobilized reactants. The apparatus includes a dispensing bed that holds a plurality of substrates. Each potential immobilized reactant is held in a cartridge. The apparatus includes a holder that allows any of these cartridges to be used in dispensing an immobilized reactant. The apparatus includes a positioning mechanism for positioning the cartridges over each of the substrates. The positioning mechanism also allows a cartridge so positioned to be brought into contact with each of the substrates at a predetermined location on each of the substrates so as to dispense a known quantity of the immobilized reactant onto the substrate at that location. In the preferred embodiment of the present invention, the cartridges include a chamber for holding the immobilized reactant and a channel having a first end communicating with the chamber. The second end of the channel provides the exit path through which the immobilized reactant exits when the cartridge is brought into contact with the substrates.