Appeal No. 2000-0119
Application 08/785,711
fineness of comminution are of paramount importance to Rosinski
and that any modification of his process should do nothing to
compromise those objectives. Looking to Grube, appellants
contend that this patent is directed to very crude operations,
like municipal waste fragmentation and mold core removal from
castings, that are very different from the demanding process
concerns of Rosinski where extremely finely divided colloidal
sized fragmentation particles are desired. Based on the crude
nature and scale of the fragmentation process taught in Grube,
appellants contend that one of ordinary skill in the art would
not have been motivated to look to such a reference if seeking
to improve upon Rosinski’s process.
Having carefully reviewed the collective teachings of
Rosinski and Grube, we find ourselves in agreement with appel-
lants’ view that there is no motivation or suggestion in the
applied references for attempting to combine crude mold core
removal and municipal waste fragmentation teachings like those of
Grube with the much more controlled and precise fragmentation
process of Rosinski where it is important that the fragmentation
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