Granted Patent
Utility
US 5,436,446 · App. 08/199,406
Analyzing time modulated electrospray
Inventors:
Joseph A. Jarrell, Michael J. Tomany
Patented Case
View Patent ↗
Granted: Jul 25, 1995
Filed: Feb 22, 1994
Inventors
Joseph A. Jarrell
Michael J. Tomany
Assignee (at issue)
Waters Investments Limited
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.