Granted Patent
Utility
US 5,259,254 · App. 07/766,049
Sample introduction system for inductively coupled plasma and other gas-phase, or particle, detectors utilizing ultrasonic nebulization, and method of use
Inventors:
Jianzhong Zhu, John E. Sutton
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Sep 25, 1991
Inventors
Jianzhong Zhu
John E. Sutton
Assignee (at issue)
CETAC Technologies 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.