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. 27, 1985
Filed:
Dec. 11, 1981
Applicant:
Inventors:
Knut Oppenlaender, Ludwigshafen, DE;
Rolf Fikentscher, Ludwigshafen, DE;
Egon Buettner, Ludwigshafen, DE;
Wilhelmus Slotman, Ludwigshafen, DE;
Erich Schwartz, Ludwigshafen, DE;
Rudolf Mohr, Lampertheim, DE;
Assignee:
BASF Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; C09K / ;
U.S. Cl.
CPC ...
252344 ; 210708 ; 252358 ;
Abstract
Petroleum demulsifiers which contain, as the active ingredients, oxyalkylated isoalkylphenol-formaldehyde resins and oxyalkylated polyalkylenepolyamines.
Oppenlaender, Knut. (1985). Demulsifiers for breaking crude-oil emulsions and their use (U.S. Patent No. 4537701). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4537701
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile