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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.:

US 12790671 B1

PDFFull Text
Date of Patent:
Nov. 10, 2026

Filed:

May. 08, 2020

Nickel-free austenitic stainless-steel powder composition and part produced by sintering by means of this powder

Applicant:

The Swatch Group Research and Development Ltd, Marin, CH;

Inventors:

Joël Porret, Marin-Epagnier, CH;

Ludovic Giller, Marly, CH;

Assignee:

The Swatch Group Research and Development Ltd, Marin, CH;

Attorney:

Oblon, McClelland, Maier & Neustadt, L.L.P.

Primary Examiner:

Seth Dumbris

Int. Cl.
CPC ...
C22C 33/02 (2006.01); B22F 1/05 (2022.01); B22F 3/15 (2006.01); B22F 3/24 (2006.01); B33Y 40/20 (2020.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/38 (2006.01);
U.S. Cl.
CPC ...
C22C 33/0285 (2013.01); B22F 1/05 (2022.01); B22F 3/15 (2013.01); B22F 3/24 (2013.01); B33Y 40/20 (2020.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/38 (2013.01); B22F 2003/248 (2013.01); B22F 2201/02 (2013.01); B22F 2304/10 (2013.01);
Abstract

An austenitic stainless-steel powder having a nickel content of less than or equal to 0.5% by weight and a specific carbon content that is greater than or equal to 0.05% and less than or equal to 0.11% by weight. A method for manufacturing the powder by powder metallurgy and parts resulting from the manufacturing method, which have the characteristic of having a deoxidised layer on the surface of the part extending over a thickness greater than or equal to 200 μm.

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Porret, Joël. (2026). Nickel-free austenitic stainless-steel powder composition and part produced by sintering by means of this powder (U.S. Patent No. 12790671). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12790671

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