| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 89 | |
| #2 | France | 1 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Engines, pumps and turbines | |
| #3 | Mechanical elements | |
| #4 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Vollmer Joseph | 12 |
| #2 | Eichler Albin | 4 |
| #3 | Isendahl Dr-Ing Herbert | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE744649C | Flushing and loading device | |
| GB294016A | Improvements in or relating to internal expanding brakes | |
| DE589262C | Pre-chamber diesel engine | |
| DE500587C | Four-stroke pre-chamber internal combustion engine with self-ignition of the fuel injected into the highly compressed combustion air |