| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Thermal processes | |
| #3 | Biotechnology | |
| #4 | Organic fine chemistry | |
| #5 | Engines, pumps and turbines | |
| #6 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Separation | |
| #2 | Microbiology | |
| #3 | Steam generation | |
| #4 | Refrigerators | |
| #5 | Acyclic or carbocyclic compounds | |
| #6 | Preheating for stem generation | |
| #7 | Smoking accessories | |
| #8 | Siphons |
| Publication | Filing date | Title |
|---|---|---|
| DE381621C | Cigarette holder |