to obtain at least one natural product from the biological
material.
Paper 6, attachment p. 1-2.
F 17. Mengal's Claim 20 is representative of the parties' invention as claimed by Mengal
(paragraphing added):
20. A method of separating a natural product from a biological material,
the method comprising:
placing the biological material in an enclosure,
the biological material containing water,
the enclosure essentially free of liquid water other than the
water contained in the biological material, and
the enclosure free of organic solvent;
releasing at least part of the natural product from the biological
material
by applying microwave radiation to the biological material,
the microwave radiation effective to
evaporate at least part of the water contained
in the biological material to form
water vapor and
the microwave radiation effective to split the
cellular structure of the biological
material;
intermittently applying reduced pressure within the enclosure
during the application of microwave radiation
to further split the cellular structure of the biological
material induced by application of the
microwave radiation;
hydrodistilling the natural product
by conveying
the natural product and
the water vapor coming from the biological material
as an azeotropic mixture; and
separating the natural product from the azeotropic mixture.
Paper 7, pp. 5-6.
3. Pari's Preliminary Statement
F 18. Par6's preliminary statement relies solely on the filing dates of three earlier applications for
priority - U.S. Applications 08/327,638 and 08/012,475; and a Canadian Application which
is said to have become Canada Patent 2,060,93 1. Paper 32.
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