Granted Patent
Utility
US 5,658,075 · App. 08/564,533
Self-cleaning reactor/mixer for highly viscous and solids-bearing materials to be mixed
Inventors:
Klaus Schebesta, Heinrich Schuchardt, Martin Ullrich
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Nov 29, 1995
Inventors
Klaus Schebesta
Heinrich Schuchardt
Martin Ullrich
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.