| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 5 | |
| #2 | Spain | 4 | |
| #3 | Switzerland | 3 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Organic fine chemistry |
| # | Technology | |
|---|---|---|
| #1 | Chemical or physical processes | |
| #2 | Acyclic or carbocyclic compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Urfer Charles | 5 |
| #2 | Charles Urfer | 3 |
| #3 | Duparc Louis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| CA258754A | Catalyst manufacture | |
| CA250519A | Synthetic production of ammonia | |
| CA258753A | Metal manufacture | |
| CA258752A | Catalyst manufacture | |
| CA221705A | Catalyst |