Granted Patent
Utility
US 6,416,641 · App. 09/328,511
Biosensor
Inventors:
Shin Ikeda, Motokazu Watanabe, Toshihiko Yoshioka, Shiro Nankai
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Jun 9, 1999
Inventors
Shin Ikeda
Motokazu Watanabe
Toshihiko Yoshioka
Shiro Nankai
Assignee (at issue)
SUMITOMO ELECTRIC 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.