| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 24 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Chemical engineering | |
| #3 | Transport | |
| #4 | Electrical machinery and energy | |
| #5 | Measurement | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Siphons | |
| #2 | Rotary-pistons | |
| #3 | Separation | |
| #4 | Guiding railway traffic | |
| #5 | Measuring force, work and fluid pressure | |
| #6 | Electric discharge tubes | |
| #7 | Capacitors and switching devices | |
| #8 | Pumps | |
| #9 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gaede Dr Wolfgang | 6 |