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:
Jul. 30, 1996
Filed:
Jun. 03, 1994
Applicant:
Inventors:
David L Anton, Wilmington, DE (US);
Robert DiCosimo, Wilmington, DE (US);
Assignee:
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P / ; C12P / ; C12N / ;
U.S. Cl.
CPC ...
435136 ; 435190 ; 435192 ; 4351721 ;
Abstract
An improved enzymatic process for reacting glycolic acid and oxygen in an aqueous solution in the presence of aminomethylphosphonic acid wherein the improvement comprises using a microbial cell catalyst that expresses glycolate oxidase (e.g., Pichia pastoris, Hansenula polymorpha, Aspergillus nidulans, or Escherichia coli) and endogenous catalase; soluble catalase may also be included. The resulting mixtures are useful intermediates in the production of N-(phosphonomethyl)glycine.