Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 8125153 | Microwave energized plasma lamp with dielectric waveguide A plasma lamp including a waveguide body comprising at least one dielectric material. The body is coupled to a microwave power source which causes the body to resonate in at least one resonant mode. A lamp chamber integrated with the body contains a bulb with a fill... | 02/28/2012 |
| 7919923 | Plasma lamp with dielectric waveguide A plasma lamp and a method of generating light are provided. The plasma lamp may include a lamp body having a dielectric constant greater than about 2 and a power source. The power source is coupled to the lamp body by a feed to provide power to the lamp body. A bul... | 04/05/2011 |
| 7525253 | Microwave energized plasma lamp with dielectric waveguide A plasma lamp including a waveguide body comprising at least one dielectric material. The body is coupled to a microwave power source which causes the body to resonate in at least one resonant mode. A lamp chamber integrated with the body contains a bulb with a fill... | 04/28/2009 |
| 7518315 | Microwave energized plasma lamp with solid dielectric waveguide A plasma lamp including a waveguide body including at least one dielectric material with a dielectric constant greater than approximately 2. The body is coupled to a microwave source which causes the body to resonate in at least one resonant mode. At least one lamp ... | 04/14/2009 |
| 7498747 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to... | 03/03/2009 |
| 7391158 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 06/24/2008 |
| 7372209 | Microwave energized plasma lamp with dielectric waveguide A plasma lamp including a waveguide body including at least one dielectric material with a dielectric constant greater than approximately 2. The body is coupled to a microwave source which causes the body to resonate in at least one resonant mode. At least on... | 05/13/2008 |
| 7362054 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to... | 04/22/2008 |
| 7362055 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to... | 04/22/2008 |
| 7362056 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 04/22/2008 |
| 7358678 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp is disclosed for powering a small and bright bulb with a diameter of a few millimeters. The lamp is contained within a high dielectric constant material which guides the microwaves to the bulb, provides heat isolation to... | 04/15/2008 |
| 7348732 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 03/25/2008 |
| 6922021 | Microwave energized plasma lamp with solid dielectric waveguide A plasma lamp including a waveguide body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2. The body is coupled to a microwave power source which causes the body to resonate in at least one resonant ... | 07/26/2005 |
| 6737809 | Plasma lamp with dielectric waveguide A dielectric waveguide integrated plasma lamp (DWIPL) with a body consisting essentially of at least one dielectric material having a dielectric constant greater than approximately 2, and having a shape and dimensions such that the body resonates in at least one res... | 05/18/2004 |