Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Reexamination Certificate
2007-08-31
2011-11-22
Ahmed, Sheeba (Department: 1787)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
C264S478000
Reexamination Certificate
active
08062739
ABSTRACT:
The present invention provides a hydrogel article having a multi-layered structure and exhibiting a gradient in polymer molecular weight. The invention also provides a method of forming a hydrogel article having a multi-layered structure and exhibiting a gradient in polymer molecular weight.
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Charlebois Steven
Liu Kaifeng
Thomas Brian
Ahmed Sheeba
Cook Alex Ltd.
Zimmer Inc.
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