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:
Apr. 01, 1986
Filed:
Mar. 12, 1984
Applicant:
Inventors:
Steven M Schwartzman, Stevensville, MT (US);
Edgar E Ribi, Hamilton, MT (US);
Assignee:
Ribi ImmunoChem Research, Inc., Hamilton, MT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07H / ;
U.S. Cl.
CPC ...
336127 ; 536119 ;
Abstract
A method of purifying crude trehalose dimycolates (TDM) is disclosed which comprises dissolving crude TDM in a solvent and then subjecting said solution to a low pressure silica gel column operating at a pressure between about 10 and 300 psi wherein the silica gel comprises particles in the range of between about 15 and 63 microns. The product of this process is also disclosed.