Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5992019 | Method of replacing heating tubes of a heating chamber | Karl May, Karlheinz Unverzagt | 1999-11-30 |
| 5746590 | Heating chamber with inner heating tubes and method of replacing the heating tubes | Karl May, Karlheinz Unverzagt | 1998-05-05 |
| 5711235 | Waste conveyor and method for inspecting the contents of a conveyor channel for waste | Karl May, Karlheinz Unverzagt | 1998-01-27 |
| 5709779 | Device for conveying waste in a pyrolysis reactor | Karl May, Karlheinz Unverzagt | 1998-01-20 |
| 5688117 | Rotatable heating chamber with internal tubes for waste | Karl May, Karlheinz Unverzagt, Herbert Tratz, Helmut Werdinig | 1997-11-18 |
| 5673748 | Heating chamber for solid material | Karl May, Karlheinz Unverzagt, Helmut Werdinig | 1997-10-07 |
| 5611290 | Waste conveyor | Herbert Tratz, Karl May, Karlheinz Unverzagt | 1997-03-18 |
| 5558203 | Transporting device | Karl May, Karlheinz Unverzagt, Helmut Werdinig | 1996-09-24 |
| 5497712 | Low-temperature carbonization/combustion process and low-temperature carbonization/combustion plant with pressure control | Karl May, Reinhard Mattke | 1996-03-12 |
| 5215144 | Heat exchanger | Karl May | 1993-06-01 |