Granted Patent
Utility
US 5,997,496 · App. 08/983,304
System and method of extracorporeally treating blood to alleviate the symptoms of inflammatory diseases
Inventors:
Mitsuyo Sekiguchi, Yoshinori Takenaka
Patented Case
View Patent ↗
Granted: Dec 7, 1999
Filed: Dec 30, 1997
Inventors
Mitsuyo Sekiguchi
Yoshinori Takenaka
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.