Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11939256 | Melt tank and glass melting plant | Alexander Sorg, Matthias Lindig | 2024-03-26 |
| 10800694 | Feeding device for a glass melting plant | Philipp Heigl, Volker Müller | 2020-10-13 |
| 8806899 | Melting device for producing a glass melt | Matthias Lindig, Alexander Sorg | 2014-08-19 |
| 6154481 | Method of operation of a glass melting furnace and a glass melting furnace for the practice of the method | Helmut Pieper | 2000-11-28 |
| 5634958 | Method and apparatus for conditioning and homogenizing a glass stream | Richard Sims | 1997-06-03 |
| 5630860 | Method and apparatus for conditioning and homogenizing a glass stream | Richard Sims | 1997-05-20 |
| 5573569 | Method for conditioning and homogenizing a glass stream | Richard Sims | 1996-11-12 |
| 5536291 | Method for melting glass in and a glass melting furnace for the practice of the method | Helmut Pieper | 1996-07-16 |
| 5399181 | Method and apparatus for preheating charging material having organic contaminants for glass melting furnaces | — | 1995-03-21 |
| 5035735 | Process for vitrifying environmentally hazardous waste material in a glass melting furnace | Helmut Pieper, Hartmut Zschocher | 1991-07-30 |
| 5002600 | Conduit for molten glass | Matjaz Bucar | 1991-03-26 |
| 4965812 | Electrode for a glass melting | Helmut Pieper, Rudolf Kessel | 1990-10-23 |
| 4948411 | Glass melting furnace for glazing environmentally hazardous wastes | Helmut Pieper, Hartmut Zschocher | 1990-08-14 |
| 4944785 | Process using melt accelerator for the conversion of solid waste substances into glass | Helmut Pieper, Hartmut Zschocher, Heinz Merlet | 1990-07-31 |
| 4836841 | Roof for the working area, melting area or gob feeder of a glass melting furnace | Matjaz Bucar | 1989-06-06 |
| 4687504 | Glass melting furnace with bottom electrodes | Helmut Pieper, Adolf Knauer | 1987-08-18 |
| 4321075 | Skimming apparatus | Emil Ilk | 1982-03-23 |