| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | France | 4 | |
| #3 | United Kingdom | 4 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Thermal processes | |
| #3 | Machines | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Rotary-pistons | |
| #2 | Refrigerators | |
| #3 | Rotary pistons | |
| #4 | Centrifuges | |
| #5 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Guettner Max | 4 |
| #2 | Baeger Richard | 1 |
| #3 | Max Guettner | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB185404A | Supporting of the piston in rotary engines, pumps and the like | |
| GB167455A | Pressure regulator for ice and cold producing machines as also for other purposes | |
| GB151951A | Improvements in rotary blowers and gas compressors or rotary engines | |
| GB156570A | Rotary blower and gas compressor | |
| DE352578C | Reducing valve for ice and cold making machines and for other purposes | |
| DE556465C | Automatic pressure regulator |