Granted Patent
Utility
US 6,811,695 · App. 10/145,968
Microfluidic filter
Inventor:
Christoph Karp
Patented Case
View Patent ↗
Granted: Nov 2, 2004
Filed: May 13, 2002
Inventor
Christoph Karp
Assignee (at issue)
Nanostream, 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.