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:
Mar. 19, 2024
Filed:
Sep. 23, 2021
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
James M. Nelson, Woodbury, MN (US);
Michael A. Haase, St. Paul, MN (US);
Terry L. Smith, Roseville, MN (US);
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 6/38 (2006.01);
U.S. Cl.
CPC ...
G02B 6/3849 (2013.01); G02B 6/3839 (2013.01); G02B 6/3866 (2013.01); G02B 6/3879 (2013.01); G02B 6/3885 (2013.01); G02B 6/3893 (2013.01);
Abstract
A light coupling unit includes a first major surface comprising one or more substantially parallel first grooves oriented along a first direction for receiving one or more optical waveguides. A second major surface for slidably contacting a mating light coupling unit comprises an optically transmitting window for propagating an optical signal therethrough, and a region of second grooves and lands configured to capture particulate contaminants in the second grooves.