Granted Patent
Utility
US 6,806,392 · App. 10/290,018
Process and manufacturing equipment for preparing acetals and ketals
Inventors:
Volkmar Boesch, Juan Ramon Herguijuela, Thomas Clavey
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Nov 7, 2002
Inventors
Volkmar Boesch
Juan Ramon Herguijuela
Thomas Clavey
Assignee (at issue)
DSM IP Assets B.V.
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.