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:
May. 07, 1991
Filed:
Nov. 28, 1989
Applicant:
Inventors:
Ton T Hai, Lake Villa, IL (US);
Deanna J Nelson, Libertyville, IL (US);
Assignee:
Baxter International Inc., Deerfield, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
562474 ;
Abstract
An improved method of synthesizing 3,5-dibromosalicylic acid provides a highly purified pharmaceutical grade product free of toxic by-products and solvents. The purified product may be utilized as an intermediate in synthesizing pharmaceutical grade substances, as a bactericide when incorporated into topical ointments, and as an adjuvant in drug absorption systems.