Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2006-05-09
2006-05-09
Yoon, Tae H. (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C523S105000, C523S206000, C623S011110, C623S023750, C623S926000
Reexamination Certificate
active
07041713
ABSTRACT:
The present invention provides an artificial dura mater which comprises an amorphous or low crystallinity polymer as a constituent component and which prevents the cerebrospinal fluid leakage.
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Asahara Tomohiko
Yamauchi Koji
Gunze Limited
Yoon Tae H.
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