| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 59 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Mechanical elements | |
| #3 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Steam turbines | |
| #2 | Machines | |
| #3 | Steam engine plants | |
| #4 | Shafts | |
| #5 | Non-positive-displacement pumps | |
| #6 | Special non-positive-displacement engines | |
| #7 | Locomotives | |
| #8 | Pipes | |
| #9 | Parachutes | |
| #10 | Steam traps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Roeder Dr-Ing Karl | 17 |
| #2 | Roeder Dipl-Ing Rolf | 2 |
| #3 | Woellried Gut | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE726951C | Centering and clamping ring for rotating bodies subdivided into shells as guide vane or seal carrier of axially loaded centrifugal machines, in particular steam or gas turbines | |
| DE628830C | Steam power plant with high pressure piston engine and low pressure steam turbine | |
| DE589614C | Piston engine of the closed type | |
| DE589615C | Process for oil separation |