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. 24, 2012
Filed:
Aug. 25, 2004
Paul Dyson, Ecublens, CH;
Dongbin Zhao, Basel, CH;
Zhaofu Fei, Reneus, CH;
Ecole Polytechnique Federale de Lausanne, Lausanne, CH;
Abstract
Novel chemical compounds of the general formulaKA,in which Kis a 5- or 6-membered heterocyclic ring having 1-3 hetereo atoms, which can be independently N, S, or O; with the proviso that at least one of the hetereo atoms must be a quaternized nitrogen atom having a —R'CN substituent, wherein R′ is alkyl (Cto C); the heterocyclic ring having up to 4 or 5 substituents independently chosen from the moieties: These compounds can be used as industrial solvents, especially as ligands for efficient catalyst recycling.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile