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. 26, 1995
Filed:
Dec. 29, 1994
Heng-Wei Chang, Foster City, CA (US);
Dario M Slavazza, San Jose, CA (US);
Other;
Abstract
The invention provides methods and apparatuses for solid-phase peptide synthesis which employ solvent/reagent delivery and measuring systems open to atmospheric pressure coupled to pressurized transfer and reaction systems. The delivery and measuring systems consists of multiple solvent vessels connected to a metering vessel through individual, uninterrupted solvent lines. The metering vessel is connected to a transfer vessel by a valve through which solvent is gravity fed to the transfer vessel. The solvent is now in a closed, single pathway system and can be pressurized from the transfer vessel to a reaction vessel. This closed system allows the complete inversion of the reaction vessel; with the advantage of guaranteeing complete resin to solvent contact without any possibility of loss of resin product. All of the steps are accomplished by the opening and closing of individual valves that are controlled through a personal computer and system software that allow the user to do these steps individually or in any combination and length.