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:
Aug. 20, 1991
Filed:
Sep. 14, 1988
Applicant:
Inventors:
Alan Paau, Middleton, WI (US);
Winston J Brill, Madison, WI (US);
Assignee:
W. R. Grace & Co. - Conn., Columbia, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12R / ; C12N / ; C12N / ; A01C / ; C05F / ;
U.S. Cl.
CPC ...
4352522 ; 4352523 ; 4351721 ; 435878 ; 47 576 ; 47DI / ; 71-7 ;
Abstract
A method is disclosed for producing novel strains of Rhizobium bacteria for legume inoculants which are both competitive and have high nitrogen fixation characteristics. The method involves first isolating and identifying the naturally predominant strains of the Rhizobium species of interest in a particular locale and then mutagenizing that strain to produce mutant strains which retain the competitiveness and add enhanced nitrogen fixation capabilities.