Granted Patent
Utility
US 6,422,396 · App. 09/398,125
Coalescer for hydrocarbons containing surfactant
Inventors:
Yu Li, Jon A. Schnable, Holly T. Hill, Roger K. Miller
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Sep 16, 1999
Inventors
Yu Li
Jon A. Schnable
Holly T. Hill
Roger K. Miller
Assignee (at issue)
Kaydon Custom Filtration 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.