Granted Patent
Utility
US 5,948,828 · App. 08/891,187
Technology development and consultancy
Inventor:
Werner Reck
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Jul 10, 1997
Inventor
Werner Reck
Assignee (at issue)
Hoechst Aktiengesellschaft and Werner Reck, Technologie Entwicklung und Beratung CNT DEX COD 03
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.