Granted Patent
Utility
US 6,478,960 · App. 09/213,871
Manufacturing method of artificial organ, hollow fiber, and dialyzer of hollow fiber membrane type
Inventors:
Makoto Saruhashi, Masatomi Sasaki
Patented Case
View Patent ↗
Granted: Nov 12, 2002
Filed: Dec 17, 1998
Inventors
Makoto Saruhashi
Masatomi Sasaki
Assignee (at issue)
ASAHI MEDICAL CO., LTD
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.