Granted Patent
Utility
US 6,403,595 · App. 09/601,660
Sulfonamide derivatives, processes for producing the same and utilization thereof
Inventors:
Hiroyuki Tawada, Fumio Itoh, Hiroshi Banno, Zen-ichi Terashita
Patented Case
View Patent ↗
Granted: Jun 11, 2002
Filed: Aug 3, 2000
Inventors
Hiroyuki Tawada
Fumio Itoh
Hiroshi Banno
Zen-ichi Terashita
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.