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. 28, 2022
Filed:
Dec. 10, 2020
Saudi Arabian Oil Company, Dhahran, SA;
Dwight W. Swett, Cypress, TX (US);
SAUDI ARABIAN OIL COMPANY, Dhahran, SA;
Abstract
Electromagnetic metamaterial cells are described. An example of an electromagnetic metamaterial cell includes spatially separate absorptive features disposed in a planar rotationally symmetric arrangement. Each of the absorptive features may include a curvilinear segment that is convex relative to a center of symmetry of the arrangement. In some embodiments, each of the absorptive features includes one or more forks extending from the curvilinear segment. Each of the one or more forks may include a stem and at least two tines extending from the stem. The electromagnetic metamaterial cell may be included in a detector, such as a microbolometer, which itself may be included in a Fourier-transform infrared spectroscopy (FTIR) system. In some embodiments, the FTIR system may be used to characterize fluid in a wellbore. The fluid may be a drilling fluid or a downhole fluid, such as crude oil.