Granted Patent
Utility
US 5,980,987 · App. 08/745,026
Method of making a composition for separating and concentrating certain ions from mixed ion solutions
Inventors:
Bryon J. Tarbet, Ronald L. Bruening, Anthony J. Di Leo, Philip Goddard, Louis M. Scarmoutzos
Patented Case
View Patent ↗
Granted: Nov 9, 1999
Filed: Nov 7, 1996
Inventors
Bryon J. Tarbet
Ronald L. Bruening
Anthony J. Di Leo
Philip Goddard
Louis M. Scarmoutzos
Assignees (at issue)
Millipore Corporation
IBC Advanced Technologies, Inc.
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.