Granted Patent
Utility
US 6,350,284 · App. 09/152,437
Bioabsorbable, layered composite material for guided bone tissue regeneration
Inventors:
Pertti Tormala, Minna Kellomäki, Timo Waris
Patented Case
View Patent ↗
Granted: Feb 26, 2002
Filed: Sep 14, 1998
Inventors
Pertti Tormala
Minna Kellomäki
Timo Waris
Assignee (at issue)
Bionx Implants, Oy
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.