Granted Patent
Utility
US 6,617,136 · App. 09/841,272
Biological sample processing methods and compositions that include surfactants
Inventors:
Ranjani V. Parthasarathy, Raj Rajagopal, William Bedingham, Michael D. Dirksen, Christopher Larson, Vinod P. Menon
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Apr 24, 2001
Inventors
Ranjani V. Parthasarathy
Raj Rajagopal
William Bedingham
Michael D. Dirksen
Christopher Larson
Vinod P. Menon
Assignee (at issue)
3M INNOVATIVE PROPERTIES COMPANY
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.