Applications of diffusion hardening techniques

US11351031B2 · kind B2 · utility

Assignee

• SMITH & NEPHEW, INC. · US

Inventors

• Timothy John Band · Matlock Bath, GB
• Hamish Forster · Memphis, US
• Gordon Hunter · Memphis, US
• Shilesh C. Jani · Germantown, US
• Mark L. Morrison · Memphis, US
• Vivek Pawar · Germantown, US
• Abraham Biglari Salehi · Bartlett, US
• Jeffrey J. Shea · Memphis, US

Key dates

• Filing date: Nov 19, 2019
• Grant date: Jun 7, 2022
• Expiry date: Oct 19, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02T50/60
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

A device, for example a medical implant, and a method of making the same, the device having a metal or metal alloy substrate, for example cobalt chrome, and a diffusion hardened metallic surface, for example a plasma carburized surface, contacting a non-diffusion hardened surface or a diffusion hardened surface having a diffusion hardening species different from that of the opposing surface.