Granted Patent
Utility
US 6,555,813 · App. 09/561,604
Probes with hydrophobic coatings for gas phase ion spectrometers
Inventors:
Jody Beecher, Frank Scheufele, Kamen Voivodov, Scot R. Weinberger, William Landgraf
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Apr 27, 2000
Inventors
Jody Beecher
Frank Scheufele
Kamen Voivodov
Scot R. Weinberger
William Landgraf
Assignee (at issue)
Ciphergen Biosystems, 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.