| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 8 | |
| #2 | Canada | 5 | |
| #3 | Denmark | 3 | |
| #4 | Spain | 1 | |
| #5 | Greece | 1 |
| # | Industry | |
|---|---|---|
| #1 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Producer gas production | |
| #2 | Fuels |
| # | Name | Total Patents |
|---|---|---|
| #1 | Darche Albert Alexandre August | 9 |
| #2 | Albert-Alexandre-Augustin Darc | 7 |
| #3 | Alexandre Augustin Darche Albe | 1 |
| #4 | Societe Anonyme Societe Vulcan | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA360586A | Internal combustion engine | |
| CA300283A | Wrist pin | |
| CA365570A | Engine cylinder head | |
| CA293231A | Engine detonation governing mechanism | |
| CA301562A | Piston for internal combustion engines |