AN OVERBROAD PATENT ON RFID Spacers - This application seeks to patent the idea of... RFID spacers! 10 minutes of your time can help narrow US patent applications before they become patents. Follow @askpatents on twitter to help.
QUESTION - Have you seen anything else that was published before Jan, 2010 that discusses:
us20110234383 (recently issued as 8,576,051, see this answer)appears to be nothing more than a patent for placing a foam spacer on the RFID tag to keep it away from the body of the runner. These have been in use for as long as I can remember since RFID tags do not operate when directly placed in contact with an object that absorbs RF such as the human body or metal.
In particular, this blog post made within days of the application date http://rfidtiming.com/tech-talk-the-great-spacer-debate/ explains the problem and the solution that this patent filer is claiming to have invented. At the time of the blog post, the solution of using a foam spacer (explicitly noted in claim 64) was not new or novel. The post is notable in that it was explaining the problem that was known to anybody skilled in the art and the solution that was by then the accepted practice.
Also note http://www.schreiner-group.com/3/company/press-room/schreiner-logidata/rfid-foam-label/ is a product with a press-release date of Aug-2010, a year before the application date. A simple google search for "rfid tag foam spacer" will return a number of products going back 5+ years before the application date. The problem was well known and the solution well implemented before 2011.
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