Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7368916 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2008-05-06 |
| 7339322 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2008-03-04 |
| 7323877 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2008-01-29 |
| 7259519 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2007-08-21 |
| 7224124 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2007-05-29 |
| 7196476 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2007-03-27 |
| 7116055 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2006-10-03 |
| 7002301 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2006-02-21 |