Appeal No. 95-2245 Application No. 08,011,563 original application disclosure as a whole must be considered with the recognition that the claimed subject matter need not be described in haec verba in the original disclosure to satisfy the description requirement. See In re Wright, 866 F.2d 422, 9 USPQ2d 1649 (Fed. Cir. 1989). Precisely how close the original description must be to the claim language to comply with the description requirement must be determined on a case-by-case basis. The inquiry into whether the description requirement is met is a question of fact. See In re Wilder, supra. Here, the examiner asserts that the claim language “sintered titanium dioxide particles as a by-product” does not appear in the original application disclosure. Contrary to the examiner’s assertion, however, the specification as originally filed describes (page 3) that: sintered titanium dioxide particles, also known as scrub solids have been found to be particularly useful. These particles are used in the preparation of titanium dioxide according to the chloride process, if the reaction gases are to be cooled via indirect heat exchange, in that the cooling area can be maintained extensively free of unwanted coatings. The particles, though a by-product in the preparation of titanium dioxide, are believed available from other processes and sources as well. 7Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 NextLast modified: November 3, 2007