Appeal No. 2006-2797 Page 3
Application No. 09/341,821
Claims 5, 6, 10, 14, 15, and 18
5. A vessel as claimed in claim 1 wherein the gel comprises:
(a) from about 0.05% to 10% by weight of a natural gelling agent;
(b) from about 1.0% to 10% by weight of a hydrocolloid;
(c) from about 5.0% to 30.0% by weight of an alkylene glycol; and
(d) at least 50% by weight of water.
Claims 8, 9, 19, 20
For reasons discussed below, although claims 8 and 9 were not separately
argued, we have addressed them separately.
8. A method of making a self-sealing barrier aerosol vessel comprising multiple
doses of a wound gel, the method comprising the steps of:
(i) filling an inner container with gel, said inner container being contained
within an outer casing container;
(ii) sealing the inner container with an opening valve; and
(iii) introducing a pressure medium between the inner container and the
outer casing container.
9. A method of making a self-sealing barrier aerosol vessel comprising multiple
doses of a wound gel, the method comprising the steps of:
(i) filling an inner container with non-sterile gel, said inner container being
contained within an outer casing container;
(ii) sealing the inner container with an opening valve;
(iii) sterilizing the vessel and gel contained within it; and
(iv) introducing a pressure medium between the inner container and the
outer casing container.
Claim 1 is drawn to a self-sealing barrier aerosol vessel. The specification
explains that a barrier aerosol vessel is “of the type where the product to be dispensed
and the pressure generating media, ie [sic] the propellant, are maintained in isolation
through separation on opposite sides of a barrier.” Specification, Page 2, lines 14-17.
The specification describes “[t]hree main variants of barrier vessels” which are known in
the prior art. Id., page 2, line 33-page 3, line 33. Each contains two separate
compartments, one holding the product, and the other, the gas propellant which is used
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