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:
Oct. 22, 2019
Filed:
Sep. 09, 2015
Schlumberger Technology Corporation, Sugar Land, TX (US);
Reading University, Reading Berkshire, GB;
Timothy Jones, Cambridge, GB;
Nathan Lawrence, Cambridge, GB;
Gary Hawkins, Reading, GB;
Richard Sherwood, Reading, GB;
Karim Djotni, Reading, GB;
SCHLUMBERGER TECHNOLOGY CORPORATION, Sugar Land, TX (US);
UNIVERSITY OF READING, Reading, GB;
Abstract
A narrow bandpass filter that may be used in a mid-infrared sensor for monitoring a species, which may be a component of a fluid or a solid material. The filter comprises a cavity comprising a low refractive index material. By providing a high ratio of low refractive index material in the filter with respective to high refractive index material, the filter is configured so that wavelength transmission remains constant with varying temperature. Materials used for the low and/or high refractive index provide a temperature invariant filter that transmits mid-infrared spectra without serious degradation.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile