| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 17 | |
| #2 | Germany | 10 | |
| #3 | United Kingdom | 4 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Electrical machinery and energy | |
| #5 | Packaging and shipping | |
| #6 | Organic fine chemistry |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Mining | |
| #3 | Shaping clay | |
| #4 | Safety devices | |
| #5 | Nails | |
| #6 | Lubricating | |
| #7 | Emergency protective circuit arrangements | |
| #8 | Elevators and escalators | |
| #9 | Scaffolding | |
| #10 | Heterocyclic compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Voit Albert | 5 |
| #2 | Plessy Fernand | 4 |
| #3 | Quoniam Jean | 3 |
| #4 | Quoniam Jean Maurice | 3 |
| #5 | Lohrmann Hugo | 2 |
| #6 | Vielledent Lucien | 2 |
| #7 | Schroeder Wilhelm | 2 |
| #8 | Vidal Victor | 2 |
| #9 | Costes Henri Gabriel Andre Mar | 2 |
| #10 | Theis Alois | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2858005A | Mining stall loading machines | |
| GB829404A | Improvements in or relating to mine face loading machines | |
| GB767731A | Improvements in telescopic metal props for mines | |
| GB745309A | Mechanical cutter apparatus for use in mining |