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:
Jun. 04, 2013
Filed:
Sep. 03, 2009
Applicant:
Christian Maier, München, DE;
Inventor:
Christian Maier, München, DE;
Assignee:
Brainlab AG, Feldkirchen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 11/14 (2006.01); G02B 5/124 (2006.01); G02B 5/122 (2006.01);
U.S. Cl.
CPC ...
Abstract
A retro-reflector for image-guided operation systems, comprising eight cube corners, wherein the tips of the cube corners are adjacent to each other and each cube corner is formed from three reflective faces, comprising a protection against contamination which prevents dirt from being deposited in the cube corners.