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:
Aug. 19, 2025
Filed:
Aug. 05, 2021
Applicant:
Sgl Carbon SE, Wiesbaden, DE;
Inventors:
Christian Militzer, Meitingen, DE;
Charles Wijayawardhana, Meitingen, DE;
Urban Forsberg, Sturefors, SE;
Henrik Pedersen, Stigtomta, SE;
Assignee:
SGL CARBON SE, Wiesbaden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 28/04 (2006.01); B32B 18/00 (2006.01); C01B 32/914 (2017.01); C04B 41/00 (2006.01); C04B 41/52 (2006.01); C04B 41/89 (2006.01); C23C 16/32 (2006.01);
U.S. Cl.
CPC ...
C23C 28/042 (2013.01); B32B 18/00 (2013.01); C01B 32/914 (2017.08); C04B 41/009 (2013.01); C04B 41/526 (2013.01); C04B 41/89 (2013.01); C23C 16/325 (2013.01);
Abstract
A refractory carbide multilayer including a first layer, a second layer and a third layer. The first layer has an average thickness of at least 25 nm and contains at least one refractory carbide, the second layer has an average thickness of at least 25 nm and contains at least one refractory carbide, the third layer has an average thickness of at least 25 nm and contains at least one refractory carbide, and the first layer has a larger mean linear intercept section grain size than the second layer.