Granted Patent
Utility
US 5,015,676 · App. 07/266,508
Process for enhancing the electrostatic chargeability of powder coatings or powders, and the use thereof for surface-coating solid objects
Inventors:
Hans-Tobias Macholdt, Alexander Sieber, Claus Godau, Albrecht Manz
Patented Case
View Patent ↗
Granted: May 14, 1991
Filed: Nov 3, 1988
Inventors
Hans-Tobias Macholdt
Alexander Sieber
Claus Godau
Albrecht Manz
Assignee (at issue)
Hoechst GmbH
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.