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. 28, 2025
Filed:
Sep. 30, 2022
Timothy G. Waterman, Eldersburg, MD (US);
Patrick J. Knowles, Crownsville, MD (US);
Urs Werner Batzel, Pittsburgh, PA (US);
Timothy G. Waterman, Eldersburg, MD (US);
Patrick J. Knowles, Crownsville, MD (US);
Urs Werner Batzel, Pittsburgh, PA (US);
Abstract
In one embodiment, an electromagnetic (EM) energy containment device includes a spherically symmetric resonant dielectric structure having a radial dimension Rdefined as R=3/π·λ/2 and having first and second regions with different indices of refraction. The spherically symmetric resonant dielectric structure is configured to receive and to contain, for a selectable duration of time, an electromagnetic wave of a wavelength λ, and can find applications in delay circuits for beam steering for example.