| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | United Kingdom | 2 | |
| #3 | Australia | 1 | |
| #4 | Canada | 1 | |
| #5 | Switzerland | 1 | |
| #6 | Denmark | 1 | |
| #7 | Spain | 1 | |
| #8 | Netherlands | 1 | |
| #9 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Internal-combustion piston engines | |
| #2 | Climate change mitigation in goods production |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nolet Paul | 9 |
| #2 | Verwilghen Joseph | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA144203A | Explosion and compressed air engine | |
| US1090561A | Combined explosion or internal-combustion and compressed-air engine. | |
| GB191204987A | An Improved Combined Explosion or Internal-combustion and Compressed Air Engine. | |
| GB190814428A | Improvements in Well Sinking Apparatus. |