Granted Patent
Utility
US 6,039,939 · App. 09/039,055
N-acyl-hydroxyamino acid esters and their use
Inventors:
Jakob Ley, Roland Langner
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Mar 13, 1998
Inventors
Jakob Ley
Roland Langner
Assignee (at issue)
Haarmann & Reimer Corporation
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.