Granted Patent
Utility
US 6,369,015 · App. 09/442,509
Particulate laundry detergent compositions containing anionic surfactant granules
Inventors:
Andreas Theodorus Groot, Marco Klaver
Patented Case
View Patent ↗
Granted: Apr 9, 2002
Filed: Nov 18, 1999
Inventors
Andreas Theodorus Groot
Marco Klaver
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.