Granted Patent
Utility
US 6,184,305 · App. 09/079,565
Radiation absorbing polymer and synthesis thereof
Inventors:
Wen-Bing Kan, Akihiko Tokida, Kayo Aramaki, Hatsuyuki Tanaka, Ken Kimura
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: May 15, 1998
Inventors
Wen-Bing Kan
Akihiko Tokida
Kayo Aramaki
Hatsuyuki Tanaka
Ken Kimura
Assignee (at issue)
Clariant Finance (BVI) Limited
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.