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.

Date of Patent:
Sep. 17, 1991

Filed:

Dec. 24, 1990
Applicant:
Inventors:

James L Spivack, Cobeskill, NY (US);

David P Mobley, Schenectady, NY (US);

David K Dietrich, Schenectady, NY (US);

Joseph J Salvo, Schenectady, NY (US);

Assignee:

General Electric Company, Schenectady, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C12R / ;
U.S. Cl.
CPC ...
435156 ; 435254 ; 435913 ;
Abstract

A. parasiticus is employed to hydroxylate 2'-hydroxyterphenyl compounds to terphenyltriols, which can be used to form branched polycarbonates. The hydroxylation reaction is enhanced by maintaining a sufficient amount of a carbon source in the culture medium-reaction medium to maintain the ammonium level below 300 ppm. during the bioconversion phase. Employment of a mutant strain of A. parasiticus which was isolated following ultraviolet light mutagenesis to reduce its tendency to produce aflatoxins is preferred.


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Spivack, James. (1991). Fungal strain used to make 2',4,4'-m-terphenyltriols (U.S. Patent No. 5049498). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5049498

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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