Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5866991 | Induction lamp with oppositely oriented coil winding layers | Thomas Farkas, Timothy A. Taubert, Gordon A. Grigor, David O. Wharmby | 1999-02-02 |
| 5808267 | Plasma gun with gas distribution plug | Paul S. Eckhoff | 1998-09-15 |
| 5798496 | Plasma-based waste disposal system | Paul S. Eckhoff | 1998-08-25 |
| 5438235 | Electrostatic shield to reduce wall damage in an electrodeless high intensity discharge lamp | Timothy John Sommerer, Hseuh-Rong Chang, Arthur H. Klein, Victor D. Roberts, Harald L. Witting | 1995-08-01 |
| 5343126 | Excitation coil for an electrodeless fluorescent lamp | John P. Cocoma, Joseph C. Borowiec, Robert Pashley | 1994-08-30 |
| 5331254 | Starting circuit for an electrodeless high intensity discharge lamp employing a visible light radiator | John P. Cocoma | 1994-07-19 |
| 5175476 | Magnetically tunable starting circuit for an electrodeless high intensity discharge lamp | John M. Anderson, John P. Cocoma, Victor D. Roberts | 1992-12-29 |
| 5151633 | Self-extinguishing gas probe starter for an electrodeless high intensity discharge lamp | John P. Cocoma, James T. Dakin, Mark E. Duffy, Tommie Edward Berry | 1992-09-29 |
| 5118996 | Starting circuit for an electrodeless high intensity discharge lamp | Sayed-Amr El-Hamamsy, John P. Cocoma | 1992-06-02 |
| 5103140 | Starting circuit for an electrodeless high intensity discharge lamp | John P. Cocoma | 1992-04-07 |
| 5057750 | Two-stage resonant starting circuit for an electrodeless high intensity discharge lamp | John P. Cocoma | 1991-10-15 |
| 5047893 | High-frequency capacitor | Joseph C. Borowiec | 1991-09-10 |
| 5042139 | Method of making an excitation coil for an electrodeless high intensity discharge lamp | — | 1991-08-27 |
| 5039903 | Excitation coil for an electrodeless high intensity discharge lamp | — | 1991-08-13 |
| RE33587 | Method for (prepolarizing and centering) operating a piezoceramic power switching device | John D. Harnden, Jr., William P. Kornrumpf | 1991-05-14 |
| RE33577 | Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture | John D. Harnden, Jr., William P. Kornrumpf | 1991-04-23 |
| 5008912 | X-ray tube high voltage cable transient suppression | Steven D. Hansen | 1991-04-16 |
| 4939401 | Method and system for activation of a piezoelectric bender switch | — | 1990-07-03 |
| 4893048 | Multi-gap switch | — | 1990-01-09 |
| 4714847 | Advanced piezoeceramic power switching devices employing protective gastight enclosure and method of manufacture | John D. Harnden, Jr., William P. Kornrumpf | 1987-12-22 |
| 4695688 | Electrical contact construction | Raymond K. Seymour | 1987-09-22 |
| 4689517 | Advanced piezoceramic power switching devices employing protective gastight enclosure and method of manufacture | John D. Harnden, Jr., William P. Kornrumpf | 1987-08-25 |
| 4680840 | Method for prepolarizing and centering a piezoceramic power switching device | John D. Harnden, Jr., William P. Kornrumpf | 1987-07-21 |
| 4626698 | Zero crossing synchronous AC switching circuits employing piezoceramic bender-type switching devices | John D. Harnden, Jr., William P. Kornrumpf | 1986-12-02 |
| 4620123 | Synchronously operable electrical current switching apparatus having multiple circuit switching capability and/or reduced contact resistance | John H. Van Noy | 1986-10-28 |