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:
Jul. 13, 1999
Filed:
Apr. 03, 1997
Applicant:
Inventor:
E Zeke Mejia, Longueuil, CA;
Assignee:
Destron-Fearing Corporation, South St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01Q / ; G01V / ;
U.S. Cl.
CPC ...
343788 ; 343866 ; 343867 ; 343742 ; 343720 ; 34087001 ; 34082554 ; 324338 ; 250 33 ;
Abstract
An antenna includes a transmitter including a first transmit coil wound in a first direction. A second transmit coil is electrically coupled to the first transmitter and wound in a second direction opposite to the first direction.