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:
May. 31, 2016
Filed:
Jul. 19, 2012
Applicants:
Roberto Chiesa, Milan, IT;
Alberto Cigada, Milan, IT;
Cinzia Della Valle, Milan, IT;
Inventors:
Assignee:
POLITECNICO DI MILANO, Milan, IT;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C25D 11/02 (2006.01); C25D 11/26 (2006.01);
U.S. Cl.
CPC ...
C25D 11/026 (2013.01); C25D 11/26 (2013.01);
Abstract
A substrate of a metal selected from the group consisting of titanium, tantalum, titanium alloys and tantalum alloys, modified by anodic spark deposition (ASD) on the surface thereof of a microporous and nanoroughened layer of the oxide of the same metal, said layer being enriched with Ca, P, Si, Na, and at least one metal selected from Ag and Ga. This surface modified metal substrate show excellent osteointegrating properties associated with antibacterial activity. A further advantage resides in that its preparation process does no longer require alkaline etching to promote cellular adhesion.