| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | EPO (European Patent Office) | 5 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Environmental technology | |
| #3 | Materials and metallurgy | |
| #4 | Mechanical elements | |
| #5 | Chemical engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Freieck Paul | 4 |
| #2 | Freieck Paul Dipl Ing | 3 |
| #3 | Dittmann Hans Joachim Dipl Ing | 3 |
| #4 | Papenburg Ulrich Dipl Ing | 1 |
| #5 | Papenburg Ulrich | 1 |
| #6 | Dittmann Hans-Joachim Dipl-Ing | 1 |
| #7 | Schoenhoff Thomas | 1 |
| #8 | Kiefer Matthias | 1 |
| #9 | Balgar Guenther Dipl-Ing | 1 |
| #10 | Balgar Guenther Dipl Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE19627051A1 | Method of operating hot air burner | |
| DE19536706A1 | Jacketed radiant heating tube e.g. for industrial furnace | |
| DE19518296A1 | Recuperator burner | |
| DE19502976A1 | Method and device for burning gaseous fuel | |
| DE4314557A1 | Method and device for decontamination of bulk material containing harmful substances | |
| DE4219273A1 | Method and device for heating items to be dried | |
| DE4026605A1 | BURNER | |
| DE3915957A1 | COVERED HEATING PIPE |