Granted Patent
Utility
US 6,746,216 · App. 10/199,615
Scroll compressor with vented oil pump
Inventor:
Zili Sun
Patented Case
View Patent ↗
Granted: Jun 8, 2004
Filed: Jul 19, 2002
Inventor
Zili Sun
Assignee (at issue)
Scroll Technologies
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.