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:
Oct. 01, 2019
Filed:
May. 24, 2011
Eric Gard, Genay, FR;
Eliette Pinel, Le Clos des Frenes, FR;
Mikael Petit, Villefranche sur Saone, FR;
Eric Gard, Genay, FR;
Eliette Pinel, Le Clos des Frenes, FR;
Mikael Petit, Villefranche sur Saone, FR;
VALLOUREC OIL AND GAS FRANCE, Aulnoye-Aymeries, FR;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A threaded end () of a tubular component for drilling or working hydrocarbon wells, said end comprising a threaded zone () produced on its external or internal peripheral surface depending on whether the threaded end is male or female in type, at least a portion of the end () being coated with a dry film comprising an organic matrix in which ion exchange pigments are dispersed in proportions in the range 3% to 30% by weight; and a connection resulting from connecting two corresponding ends by makeup.