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:
Apr. 21, 2015
Filed:
Sep. 22, 2010
Ziyad H. Doany, Austin, TX (US);
Dean M. Dowdle, White Bear Lake, MN (US);
Michael E. Hamerly, Vadnais Heights, MN (US);
William C. Egbert, Minneapolis, MN (US);
Terrence H. Joyce, Jr., Lakeville, MN (US);
Ziyad H. Doany, Austin, TX (US);
Dean M. Dowdle, White Bear Lake, MN (US);
Michael E. Hamerly, Vadnais Heights, MN (US);
William C. Egbert, Minneapolis, MN (US);
Terrence H. Joyce, Jr., Lakeville, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
An article, system and method related to a magnetomechanical marker used to mark stationary assets. Magnetomechanical markers can be arranged in clusters and associated with stationary assets, including assets buried underground. Markers can be associated with an asset by being attached to the asset, arranged in a particular spatial relationship with the asset, or in any other appropriate way. A portable locating device can be used to generate an alternating magnetic field to activate the magnetomechanical marker and thus locate the asset.