Granted Patent
Utility
US 6,379,507 · App. 09/365,897
Process for producing methylal
Inventors:
Seinosuke Satoh, Yukio Tanigawa
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Aug 3, 1999
Inventors
Seinosuke Satoh
Yukio Tanigawa
Assignee (at issue)
ASAHI KASEI KABUSHIKI KAISHA
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.