Granted Patent
Utility
US 6,829,044 · App. 10/131,366
Compact, high-efficiency condensation nucleus counter
Inventor:
Benjamin Y. H. Liu
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Apr 24, 2002
Inventor
Benjamin Y. H. Liu
Assignee (at issue)
MSP 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.