Granted Patent
Utility
US 6,562,464 · App. 09/926,194
Utilization of phenylglyoxalic acid esters as photoinitiators
Inventors:
Reinhold Schwalm, Rainer Koniger
Patented Case
View Patent ↗
Granted: May 13, 2003
Filed: Sep 21, 2001
Inventors
Reinhold Schwalm
Rainer Koniger
Assignee (at issue)
BASF SE
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.