Granted Patent
Utility
US 5,670,677 · App. 08/522,371
Process for the production of color- and odor-stable quaternized fatty acid triethanolamine ester salts
Inventors:
Oriol Ponsati Obiols, Joaquim Bigorra Llosas
Patented Case
View Patent ↗
Granted: Sep 23, 1997
Filed: Sep 18, 1995
Inventors
Oriol Ponsati Obiols
Joaquim Bigorra Llosas
Assignee (at issue)
Henkel Kommanditgesellschaft auf Aktien
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.