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:
Mar. 29, 2022
Filed:
Apr. 23, 2019
Applicant:
Stabil Drill Specialties, L.l.c., Lafayette, LA (US);
Inventor:
Sorin Gabriel Teodorescu, The Woodlands, TX (US);
Assignee:
Stabil Drill Specialties, L.L.C., Lafayette, LA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/00 (2006.01); E21B 43/08 (2006.01);
U.S. Cl.
CPC ...
E21B 21/002 (2013.01); E21B 43/086 (2013.01);
Abstract
A filter sub which includes a tubular sub housing and a strainer insert. The strainer insert has (i) a tubular strainer body, (ii) a plurality of helical grooves formed through a sidewall of the strainer body, and (iii) at least one of the helical grooves extending at least 360° around the strainer body.