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. 07, 2025
Filed:
Apr. 28, 2022
Applicants:
Swagelok Company, Solon, OH (US);
Case Western Reserve University, Cleveland, OH (US);
Inventors:
Frank Ernst, Cleveland Heights, OH (US);
Todd Johns, Solon, OH (US);
Ronald Edmonson, Munroe Falls, OH (US);
Cyprian Adair William Illing, Cleveland Heights, OH (US);
Peter C. Williams, Cleveland Heights, OH (US);
Christina Semkow, University Heights, OH (US);
Assignee:
SWAGELOK COMPANY, Solon, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 8/22 (2006.01); C23C 8/26 (2006.01); C23C 8/32 (2006.01);
U.S. Cl.
CPC ...
C23C 8/22 (2013.01); C23C 8/26 (2013.01); C23C 8/32 (2013.01);
Abstract
A method for low-temperature interstitial case formation on a self-passivating metal workpiece includes exposing the workpiece in a heated gaseous environment comprising oxygen to pyrolysis products of a nonpolymeric reagent comprising nitrogen and carbon.