Issued Patents All Time
Showing 26–47 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411039 | Discharge lamp for dielectrically impeded discharges with improved electrode configuration | Frank Vollkommer, Simon Jerebic | 2002-06-25 |
| 6407513 | Gas-discharge lamp with controllable length of illumination | Frank Vollkommer | 2002-06-18 |
| 6402343 | Lighting device | Frank Vollkommer | 2002-06-11 |
| 6390637 | Flat lighting device and method for operating | Frank Vollkommer | 2002-05-21 |
| 6388374 | Signal lamp having a flat reflector lamp with locally modulated luminance | Frank Vollkommer | 2002-05-14 |
| 6376989 | Dimmable discharge lamp for dielectrically impeded discharges | Frank Vollkommer | 2002-04-23 |
| 6353294 | Operational method and electronic ballast for a discharge lamp comprising dielectrically impeded discharges | Klaus Wammes, Frank Vollkommer | 2002-03-05 |
| 6348760 | Flat signaling lamp with dielectrically impeded discharge | Frank Vollkommer | 2002-02-19 |
| 6310442 | Discharge lamp with dielectrically impeded electrodes | Frank Vollkommer | 2001-10-30 |
| 6304028 | Discharge lamp with dielectrically impeded electrodes | Frank Vollkommer | 2001-10-16 |
| 6252352 | Flat light emitter | Frank Vollkommer, Simon Jerebic | 2001-06-26 |
| 6249079 | Fluorescent lamp with spacers and locally reduced luminescent material layer thickness | Frank Vollkommer | 2001-06-19 |
| 6246171 | Gas discharge lamp with dielectrically impeded electrodes | Frank Vollkommer, Jens Muecke, Rolf Siebauer, Simon Jerebic | 2001-06-12 |
| 6225758 | Method for producing impulse voltage sequences to operate discharge lamps and circuit pertaining thereto | Frank Vollkommer | 2001-05-01 |
| 6222317 | Flat light emitter | Frank Vollkommer, Jens Muecke, Rolf Siebauer, Simon Jerebic | 2001-04-24 |
| 6172467 | Method and device for producing series of impulse voltages to operate discharge lamps and circuit pertaining thereto | Frank Vollkommer | 2001-01-09 |
| 6157145 | Method of operating a discharge lamp with a cold cathode structure having ferroelectric between | Frank Vollkommer | 2000-12-05 |
| 6097155 | Fluorescent lamp | Frank Vollkommer, Simon Jerebic | 2000-08-01 |
| 6060828 | Electric radiation source and irradiation system with this radiation source | Frank Vollkommer, Jens Muecke, Rolf Siebauer | 2000-05-09 |
| 6034470 | Flat fluorescent lamp with specific electrode structuring | Frank Vollkommer | 2000-03-07 |
| 5965988 | Discharge lamp with galvanic and dielectric electrodes and method | Frank Vollkommer, Klaus Stockwald | 1999-10-12 |
| 5604410 | Method to operate an incoherently emitting radiation source having at least one dielectrically impeded electrode | Frank Vollkommer | 1997-02-18 |