| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 13 | |
| #2 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Thermal processes | |
| #3 | Environmental technology | |
| #4 | Civil engineering | |
| #5 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Machines | |
| #2 | Preheating for stem generation | |
| #3 | Cyclically operating valves | |
| #4 | Water treatment | |
| #5 | Steam condensers | |
| #6 | Indexing scheme relating to hinges | |
| #7 | Hinges for doors or windows | |
| #8 | Pumps | |
| #9 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Weir William | 13 |
| #2 | Williams John | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1186637A | Automobile-door hinge. |