Issued Patents All Time
Showing 126–148 of 148 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315328 | Eyeglass frame | Herbert Hofmair | 1994-05-24 |
| 5270743 | Eyeglass frame | Herbert Hofmair | 1993-12-14 |
| 5264020 | Smelting plant with two melting furnaces arranged in juxtaposed relationship | Joachim Ehle | 1993-11-23 |
| 5197242 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1993-03-30 |
| 5152111 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1992-10-06 |
| 5153894 | Smelting plant with removable shaft-like charging material preheater | Joachim Ehle | 1992-10-06 |
| 5117438 | Method of operating a smelting unit and smelting unit for that method | Joachim Ehle | 1992-05-26 |
| 5111629 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1992-05-12 |
| 5025602 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1991-06-25 |
| 5009044 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1991-04-23 |
| 4899503 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1990-02-13 |
| 4893902 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1990-01-16 |
| 4848875 | Dual-pane thermal window with liquid crystal shade | Ray H. Baughman, Ernest D. Buff, Helmut Eckhardt | 1989-07-18 |
| 4696013 | Vessel of a metallurgical furnace, especially of an arc furnace | Joachim Ehle, Klaus Kimmer, Horst-Rudiger Langfeldt | 1987-09-22 |
| 4647021 | Apparatus for introducing filling material which is capable of flow into a tap hole disposed in the bottom of a metallurgical vessel | — | 1987-03-03 |
| 4617673 | Electric arc furnace having a space provided on one side of the furnace vessel for accommodating charging material | Joachim Ehle | 1986-10-14 |
| 4614752 | Process and apparatus for removing rubber and/or plastic material from composite bodies comprising metal and at least one of said materials | Roland R. Hertenstein, Hans G. Quick | 1986-09-30 |
| 4603424 | Fluid-cooled carrier member of a composite electrode of an electric arc furnace | Joachim Ehle, Helmut Karcher, Klaus Kimmer | 1986-07-29 |
| 4592067 | Metallurgical vessel, in particular an electric arc furnace | Joachim Ehle, Hans Heinzelmann | 1986-05-27 |
| 4497475 | Nozzle assembly for a metallurgical furnace | Ernst Wabersich | 1985-02-05 |
| 4397026 | Apparatus for connecting a graphite electrode to a permanent electrode in an electric furnace | — | 1983-08-02 |
| 4259539 | Melting furnace | Emil Elsner, Dieter Ameling, Rolf Assenmacher | 1981-03-31 |
| 4197422 | Cooled cover for an arc furnace | Rudolf Kasper | 1980-04-08 |