I have had the opportunity to read cursorily the database. Am yet to examine and pick some 'controversial' or already 'controversial' devices which are being commercialised in the RFID market. USPTO database provides comprehensive information that I needed. Out of sixty two (2) records, as of to date the database contains, I could assert approximately 30% of it is already in the market. Unless, someone could debate that percentage via empirical research - despite, it's only my rough and preliminary finding. In my opinion, the remaining patents seem to be a mixture of 'first to invent' approach and 'inventive strategy' (as US Patent provisions rely on the 'first to invent' rule). The link to the RFID patents is accessible here:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=0&f=S&l=50&d=PTXT&OS=%22Radio+Frequency+Identification+Technology%22&RS=%22Radio+Frequency+Identification+Technology%22&Query=%22Radio+Frequency+Identification+Technology%22&PrevList1=Prev.+50+Hits&TD=62&Srch1=%22Radio+Frequency+Identification+Technology%22
It will take some precious time to provide my summarised findings on the sixty two (62) granted RFID patents. Perhaps, it will take one (1) week to digest some selected ones. In the interval of my research, I will update on other news that I have read and collated randomly on RFID.
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