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:
Sep. 09, 2025
Filed:
Feb. 14, 2020
Applicant:
Pi Industries Ltd., Udaipur-Rajasthan, IN;
Inventors:
Alexander Klausener, Pulheim, DE;
Shrikant Bhausaheb Kanawade, Nashik-Maharashtra, IN;
Vijay Kumar Salvi, Udaipur-Rajasthan, IN;
Suresh Kumar Sythana, Rajendra Nagar-Hyderabad, IN;
Yuvraj Navnath Kale, Dist-Ahmednagar-Maharashtra, IN;
Pramod Subhash Nagle, Jalgaon-Maharashtra, IN;
Deepak Shankar Panmand, Dist: Ahmednagar-Maharashtra, IN;
Assignee:
PI INDUSTRIES LTD., Udaipur-Rajasthan, IN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 409/12 (2006.01); C07D 231/14 (2006.01); C07D 403/06 (2006.01);
U.S. Cl.
CPC ...
C07D 409/12 (2013.01); C07D 231/14 (2013.01); C07D 403/06 (2013.01);
Abstract
The present invention relates a novel process for preparing a compound of Formula I, The process comprises a novel and inventive step of converting a dione of Formula II into an isatoic anhydride of Formula V in a single step.