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. 18, 2008
Filed:
Oct. 14, 2005
Kevin W. Smith, McMurray, PA (US);
Larry W. Gatlin, Floresville, TX (US);
John H. Hallman, New Waverly, TX (US);
Kevin W. Smith, McMurray, PA (US);
Larry W. Gatlin, Floresville, TX (US);
John H. Hallman, New Waverly, TX (US);
Weatherford/Lamb, Inc., Houston, TX (US);
Abstract
Carboxylate salts of amines are used as components of heat exchange fluids. The amines may have a ratio of N to C of 1:0 to 1:12 and the carboxylate anion may be derived from an acid of the formula H(CH)COOH. A preferred monoamine heat exchange fluid utilizes triethanolamine formate. Lower carboxylate salts of diamines and triamines having the formula R[N[(CH)NR]]R where each R is independently selected from moieties of the formula —CHand moieties of the formula H[O(CH)]—, each m is independently a number from 1 to 6, and each n is a number from 1 to 4, are disclosed as compounds.