Granted Patent
Utility
US 6,412,975 · App. 09/369,212
Static mixer
Inventors:
Heinrich Schuchardt, Klemens Kohlgrüber
Patented Case
View Patent ↗
Granted: Jul 2, 2002
Filed: Aug 5, 1999
Inventors
Heinrich Schuchardt
Klemens Kohlgrüber
Assignee (at issue)
Bayer Aktiengesellschaft
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.