Granted Patent
Utility
US 6,765,110 · App. 09/740,224
Process for the simultaneous coproduction and purification of ethyl acetate and isopropyl acetate
Inventors:
R. Jay Warner, Carl D. Murphy, Gustavo Angel Robelo Grajales, Francisco Javier Sanchez Santiago, Fernando Alejo Solorzano, Jose Alfonso Torres
Patented Case
View Patent ↗
Granted: Jul 20, 2004
Filed: Dec 19, 2000
Inventors
R. Jay Warner
Carl D. Murphy
Gustavo Angel Robelo Grajales
Francisco Javier Sanchez Santiago
Fernando Alejo Solorzano
Jose Alfonso Torres
Assignee (at issue)
Celanese International 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.