Granted Patent
Utility
US 6,803,478 · App. 10/323,096
Process for the preparation of alk(en)ylphosphoric ester salts
Inventors:
Torsten Henning, Roman Morschhäuser, Matthias Loffler
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Dec 18, 2002
Inventors
Torsten Henning
Roman Morschhäuser
Matthias Loffler
Assignee (at issue)
Clariant 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.