Granted Patent
Utility
US 6,646,152 · App. 10/070,759
Method of producing 2-hydroxycarboxylic acid esters
Inventors:
Monika Knopp, Rolf Jansen
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Mar 12, 2002
Inventors
Monika Knopp
Rolf Jansen
Assignee (at issue)
Abbott GmbH & Co. KG
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.