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:
Nov. 05, 2013
Filed:
Jul. 25, 2008
Applicants:
Mario Martinelli, San Donato Milanese, IT;
Pierpaolo Boffi, Voghera, IT;
Riccardo Belli, Vedano al Lambro, IT;
Stefano Avanzi, Pieve Emanuele, IT;
Inventors:
Mario Martinelli, San Donato Milanese, IT;
Pierpaolo Boffi, Voghera, IT;
Riccardo Belli, Vedano al Lambro, IT;
Stefano Avanzi, Pieve Emanuele, IT;
Assignee:
Politecnico Di Milano, Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/25 (2006.01); G01J 3/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
A filter for an optical fibre temperature sensor comprising at least one first and one second optical filter for filtering an optical pulse reflected by said optical fibre, characterised in that said at least one first and one second optical filter comprise standard commercial filters complying with ITU specifications, said optical pulse lying within the range from 1570 nm to 1580 nm.