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. 03, 2026
Filed:
Nov. 15, 2024
Bench Tree Group, Llc, Georgetown, TX (US);
Jian-Qun Wu, Kingwood, TX (US);
Pedro Segura, Round Rock, TX (US);
Larry Thompson, Georgetown, TX (US);
Bench Tree Group, LLC, Georgetown, TX (US);
Abstract
A system of electromagnetic antennas including antennas constructed on the surface sections of a steel cylinder and made of electric antenna wires around magnetically highly permeable magnetic cores. The permeability of magnetic material is controlled by a separate electric wire winding system on the magnetic core. An antenna is turned off by a current in the windings used to saturate the magnetic core in the antenna. A saturated magnetic core has an effective relative permeability of one for electromagnetic field. Zero current in the windings of an antenna restores the high permeability of the magnetic core and activates the antenna. For a pair of antennas close by with possible mutual coupling, an on-off sequence is used so that one antenna is active and the other is off. Mutual coupling between the pair of antennas is eliminated. Air-hanging calibration is unneeded on tools utilizing disclosed antenna systems.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile