To be legitimate a US patent would have to demonstrate the
'invention' of a procedure not previously used or described.
The status of US patents differs from those in Europe and
elsewhere -- it may be that the significance of this claim
is not as great as the discussion of this list implies. But
a US patent lawyer is needed!
15 October 1997
University of East Anglia 89 Christchurch Road
Norwich NR4 7TJ, U.K. Norwich NR2 3NG, U.K.
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