Broken-loop RFID reader antenna for near field and far field UHF RFID tags

- Impinj, Inc.
Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

The FIGURE is a top plan view of a broken-loop RFID reader antenna for near field and far field UHF RFID tags showing my new design. It is understood that the broken line segments in the drawing form part of the claimed design.

Claims

The ornamental design for a broken-loop RFID reader antenna for near field and far field UHF RFID tags, as shown.

Referenced Cited
U.S. Patent Documents
2617033 November 1952 Posthumas
3852755 December 1974 Works et al.
3859624 January 1975 Kriofsky et al.
4450431 May 22, 1984 Hochstein et al.
5305008 April 19, 1994 Turner et al.
6118411 September 12, 2000 Hasegawa et al.
6392544 May 21, 2002 Collins et al.
6445354 September 3, 2002 Kunysz
6567050 May 20, 2003 Briggs
6600452 July 29, 2003 Junod
6603440 August 5, 2003 Howard
6727862 April 27, 2004 Tomon
6960984 November 1, 2005 Vicci et al.
6961023 November 1, 2005 Fujii et al.
6970141 November 29, 2005 Copeland et al.
7079080 July 18, 2006 Mizuno et al.
7161542 January 9, 2007 Endo et al.
7205947 April 17, 2007 Parsche
D543976 June 5, 2007 Oliver
D547306 July 24, 2007 Oliver
Foreign Patent Documents
1 555 714 July 2005 EP
490383 August 1938 GB
2 308 745 December 1996 GB
WO 00/26991 May 2000 WO
Other references
  • Harrop, Peter; “Near Field UHF RFID vs HF for Item Level Tagging An Independent Analysis”; pp. 1-47; IDTechEx Ltd; Cambridge, United Kingdom.
Patent History
Patent number: D570337
Type: Grant
Filed: Aug 25, 2006
Date of Patent: Jun 3, 2008
Assignee: Impinj, Inc. (Seattle, WA)
Inventor: Ronald A. Oliver (Seattle, WA)
Primary Examiner: Robert M. Spear
Assistant Examiner: John Windmuller
Attorney: Merchant & Gould
Application Number: 29/265,163