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:
Feb. 17, 2004
Filed:
Feb. 13, 2002
Applicant:
Inventors:
Michael Yan Wah Chia, Singapore, SG;
Chip Hong Ang, Singapore, SG;
Daryl Lee Song Cher, Singapore, SG;
We Peng Jason Ng, Singapore, SG;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01Q 1/112 ;
U.S. Cl.
CPC ...
H01Q 1/112 ;
Abstract
An RF transponder having an antenna comprising at least two ports operable to receive signals such that, in use, the signals in combination establish at least two current nulls on the antenna, each of the ports being located substantially at a current null.