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. 13, 2015
Filed:
May. 18, 2009
Applicants:
Luigi Merli, Saronno, IT;
Jacopo Franchini, Arese, IT;
Pierangelo Pirovano, Comerio, IT;
Mattia Ossola, Somma Lombardo, IT;
Franco Federici, Busto Arsizio, IT;
Dario Fornara, Novara, IT;
Giuseppe LI Bassi, Gavirate, IT;
Inventors:
Luigi Merli, Saronno, IT;
Jacopo Franchini, Arese, IT;
Pierangelo Pirovano, Comerio, IT;
Mattia Ossola, Somma Lombardo, IT;
Franco Federici, Busto Arsizio, IT;
Dario Fornara, Novara, IT;
Giuseppe Li Bassi, Gavirate, IT;
Assignee:
Lamberti SpA, Albizzate (VA), IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/28 (2006.01); C09K 8/34 (2006.01); C09K 8/16 (2006.01); C09K 8/12 (2006.01); C09K 8/528 (2006.01);
U.S. Cl.
CPC ...
C09K 8/12 (2013.01); C09K 8/528 (2013.01);
Abstract
Esters of alkanolamines with unsaturated, polyunsaturated or saturated C-Cmonocarboxylic acids are additives for reducing accretion on drilling equipment (anti-accretion agents) to be used in drilling muds during drilling and completion of oil and gas wells.