| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 11 | |
| #2 | United Kingdom | 4 | |
| #3 | Canada | 1 | |
| #4 | Switzerland | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Control | |
| #3 | Machines | |
| #4 | Basic materials chemistry | |
| #5 | Materials and metallurgy | |
| #6 | Environmental technology | |
| #7 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bille Leon | 9 |
| #2 | Bertandeau Guston | 1 |
| #3 | Berthet Jerome | 1 |
| #4 | Du Perigord Societe Metallurgi | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB355191A | Improvements in or relating to the manufacture of pipes | |
| GB305461A | Improvements in or relating to the assembling and jointing of pipes and the like | |
| GB160324A | Improvements in pipes and pipe joints | |
| FR8773E | Automatic pressure regulator | |
| FR380797A | Automatic pressure regulator | |
| US928896A | Pipe-joint. | |
| GB190713264A | Improvements in and relating to Pipe Joints. | |
| CA300614A | Method of assembling pipes |