Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5364952 | Vanadium(IV) oxide bis(dialkyldithiocarbamates), process for their preparation, and oil compositions containing them | Wolfram Spiess, Rolf Himmelreich, Ralf Himmelreich | 1994-11-15 |
| 5308519 | Tungsten hexaldialkyldithiocarbamates, process for their preparation and oil compositions containing them | Wolfram Spiess, Rolf Himmelreich, by Margot M. C. Himmelreich, executor, by Petra Himmelreich, heir, by Ralf Himmelreich, heir | 1994-05-03 |
| 5009671 | Process for producing a solid, finely divided fuel based on coal | Michael J. Paersch | 1991-04-23 |
| 4968324 | Process for producing a solid, finely divided fuel based on coal | Michael J. Paersch | 1990-11-06 |
| 4741278 | Solid fuel and a process for its combustion | Michael J. Paersch | 1988-05-03 |
| 4266968 | Process for injecting brown coal into a blast furnace | Heinz G. Daldrup, Gunther Nothhelfer, Raymond Limpach | 1981-05-12 |