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:
Jan. 23, 2007
Filed:
Sep. 25, 2003
Applicant:
Frank Dean, Houston, TX (US);
Inventor:
Frank Dean, Houston, TX (US);
Assignee:
LidoChem, Inc., Hazlet, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C06G 63/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
Biodegradable chelating agents comprising a substituted iminodisuccinic acid having six coordination sites and a simple method for making same are disclosed. The method calls for mixing together an acid anhydride or lactone with a polyfunctional amine to obtain an amide which is further reacted with an amine. The chelating agents are particularly useful for agricultural applications such as fertilizers.