Granted Patent
Utility
US 6,552,222 · App. 09/927,776
Hydrolysis of acylamino acids
Inventors:
Klaus Huthmacher, Christoph Weckbecker, Horst Weigel
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Aug 13, 2001
Inventors
Klaus Huthmacher
Christoph Weckbecker
Horst Weigel
Assignee (at issue)
Degussa AG
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.