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:
Nov. 10, 1987
Filed:
Mar. 11, 1986
Applicant:
Inventors:
Dieter Ohlendorf, Liederbach, DE;
Heinz Hoffmann, Bayreuth, DE;
Werner Interthal, Russelsheim, DE;
Ulrich Pintschovius, Hattersheim am Main, DE;
Assignee:
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
546347 ; 26050115 ; 26050121 ; 564284 ; 564285 ; 564288 ; 564289 ; 564291 ;
Abstract
Quaternary ammonium salts of the formula
Ohlendorf, Dieter. (1987). Quaternary ammonium salts and their use as drag reducing agents (U.S. Patent No. 4705860). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4705860
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile