| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | United Kingdom | 2 | |
| #3 | France | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology | |
| #3 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gockerell Fritz | 3 |
| #2 | Fritz Gockerell | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE499548C | Self-igniting engine with valve-controlled, piston-mounted fuel chamber of constant volume | |
| GB276528A | Improvements in or relating to internal-combustion engines | |
| DE344069C | Constant pressure engine with a combustion chamber separated from the cylinder space | |
| GB145466A | Improvements in constant pressure engines | |
| US1381181A | Operating mechanism for explosion-engines |