Appeal No. 2006-3234
Application No. 90/006,410
Abdallah
18. Abdallah discloses controlled release metformin tablets
containing methyl cellulose made using coprecipitation
technique. (Abdallah at 16).
19. Alkyl celluloses, including methyl cellulose particularly, are
disclosed and claimed as “hydrocolloid forming retarding
agents” in the ‘106 patent. (‘106 at 3:20-33 and e.g., claims 6
and 7).
20. Abdallah reports that methyl cellulose is “a hydrophilic
polymer” and a “hydrocolloid” (Abdallah at 18).
21. Abdallah does not disclose the residual moisture content of its
prepared tablets.
Otaya
22. The examiner rejected claims 34-36, 60, 61, 95, 98, 99 and
123-126 under 35 USC § 103(a) as being obvious over
Abdallah, Evenstad, and Otaya. (Answer at 7).
23. Appellants do not argue any of these rejected claims, which
primarily recite limitations regarding capping, separately from
any other rejected claim.
24. Claim 35, for example, reads as follows:
The composition of claim 1, wherein compression of the
admixture into tablets is without large losses from
capping.
25. An “object” of the ‘106 invention is to “solve the problem of
capping.” (‘106 at 1:52-55).
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