No International Searching Authority
shall be required to search an international
application if, and to the extent to which, its
subject matter is any of the following:
(i)
scientific and mathematical theories,
(ii)
plant or animal varieties or essentially
biological processes for the production of plants
and animals, other than microbiological processes
and the products of such processes,
(iii)
schemes, rules or methods of doing business,
performing purely mental acts or playing games,
(iv)
methods for treatment of the human or animal body
by surgery or therapy, as well as diagnostic
methods,
(v)
mere presentations of information,
(vi)
computer programs to the extent that the
International Searching Authority is not equipped
to search prior art concerning such programs.