Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D557919 | Arm chair having unitary front leg and arm construction | — | 2007-12-25 |
| D549480 | Arm chair having combined leg and arm components | — | 2007-08-28 |
| D526137 | Arm chair having a curved back | — | 2006-08-08 |
| D526138 | Arm chair having right-angled arms and legs | — | 2006-08-08 |
| 4767924 | Apparatus for optical monitoring with a high pressure lamp connected to a fiber optic cable | Hayo Giebel, Viktor Baumgartner, Ralf-Dietrich Tilgner, Hans Heinold, Manfred Kuhne +2 more | 1988-08-30 |
| 4354717 | Process for the production of gas discharge lamps | Wolfgang Welsch, Josef Zimlich | 1982-10-19 |
| 4318024 | Flash tube | Wolfgang Welsch, Josef Zimlich | 1982-03-02 |
| 4219757 | Gas discharge lamp | Wolfgang Welsch, Josef Zimlich | 1980-08-26 |
| 4203050 | Gas discharge lamp and method | Wolfgang Welsch, Eugen Achter | 1980-05-13 |