| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 | |
| #2 | United Kingdom | 2 | |
| #3 | Switzerland | 1 | |
| #4 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Materials and metallurgy | |
| #3 | Mechanical elements | |
| #4 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Milling | |
| #2 | Building materials | |
| #3 | Belts or cables for driving | |
| #4 | Explosive charges | |
| #5 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Davidsen Meyer-Joseph | 8 |
| #2 | Davidsen Meyer Joseph | 4 |
| #3 | Joseph Davidsen Meyer | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB248514A | Improved process for the manufacture of enamelled objects | |
| GB161977A | Improvements in grinding or crushing apparatus |