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. 12, 2003
Filed:
Feb. 28, 2001
Applicant:
Inventors:
Kondapuram Vijaya Raghavan, Andhra Pradesh, IN;
Shivanand Janardan Kulkarni, Andhra Pradesh, IN;
Motkuri Radha Kishan, Andhra Pradesh, IN;
Nagabandi Srinivas, Andhra Pradesh, IN;
Assignee:
Council of Scientific and Industrial Research, New Delhi, IN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ;
U.S. Cl.
CPC ...
C07D / ;
Abstract
The present invention relates to novel calix pyrroles and a process for synthesis of calix (4) pyrroles by reacting pyrrole with cyclic or acyclic ketones in dichloro methane (DCM) solvent over molecular sieve catalysts which provides an eco-friendly, more economical and selective heterogeneous method.
Raghavan, Kondapuram. (2003). Substituted calix (4) pyrroles and process for the synthesis of calix (4) pyrroles over molecular sieve catalysts (U.S. Patent No. 6605194). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6605194
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile