Granted Patent
Utility
US 6,262,010 · App. 09/442,510
Particulate laundry detergent compositions containing nonionic surfactant granules
Inventors:
William Derek Emery, Terry Instone, Reinhard Kohlus, Johannes Hendrikus Langeveld, Seeng Djiang Liem
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Nov 18, 1999
Inventors
William Derek Emery
Terry Instone
Reinhard Kohlus
Johannes Hendrikus Langeveld
Seeng Djiang Liem
Assignee (at issue)
Unilever Home & Personal Care USA, Division of Conopco, 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.