Rosenthal Collins Group (RCG)'s attorneys have presented
evidence in court of what they claim to be prior art which
invalidates Trading Technologies' (TT) patents for static price
The brokerage, which was sued by TT for patent infringement
last year (see FO Week Vol 10 No 31), presented
evidence in court late last month which claims that one
Walter Buist created a front-end trading system "no later than
1997", well before TT filed for its patent in 2000. Patents are
valid if no prior art was available one year before a filing
was made with US Patent and Trademark Office.
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