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. 12, 2019
Filed:
Oct. 23, 2015
Applicants:
William J. Scharmach, Grand Island, NY (US);
Gregory Panuccio, Amherst, NY (US);
Inventors:
William J. Scharmach, Grand Island, NY (US);
Gregory Panuccio, Amherst, NY (US);
Assignee:
PRAXAIR TECHNOLOGY, INC., Danbury, CT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 41/00 (2006.01); E21B 43/26 (2006.01); E21B 43/267 (2006.01); G05B 19/416 (2006.01); E21B 21/06 (2006.01);
U.S. Cl.
CPC ...
E21B 41/0092 (2013.01); E21B 21/062 (2013.01); E21B 43/26 (2013.01); E21B 43/267 (2013.01); G05B 19/416 (2013.01); G05B 2219/37371 (2013.01);
Abstract
The present invention concerns a feedback control method for adjusting the proppant concentration in a fracturing fluid that is utilized in stimulation of an underground formation.