Granted Patent
Utility
US 6,172,085 · App. 09/242,067
Cyclic ether compounds as sodium channel modulators
Inventors:
Shigenori Ohkawa, Tadatoshi Hashimoto, Kohji Fukatsu
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Feb 8, 1999
Inventors
Shigenori Ohkawa
Tadatoshi Hashimoto
Kohji Fukatsu
Assignee (at issue)
Takeda Chemical Industries 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.