| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 29 | |
| #2 | United Kingdom | 2 | |
| #3 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Electrical machinery and energy | |
| #5 | Environmental technology | |
| #6 | Measurement | |
| #7 | Surface technology and coating | |
| #8 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Shaping clay | |
| #3 | Sewers | |
| #4 | Swimming pools | |
| #5 | Water treatment | |
| #6 | Lighting device details | |
| #7 | General building constructions | |
| #8 | Analysing materials | |
| #9 | Metallic material removal | |
| #10 | Making metal sheets |
| # | Name | Total Patents |
|---|---|---|
| #1 | Tube D Acier Le | 1 |
| #2 | Perignon Jean | 1 |
| #3 | Gandillon Rene | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB597126A | Process for the production of a protective envelope for underground mains or pipes | |
| GB471995A | Method and apparatus for the treatment of sewage |