| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 12 | |
| #2 | United States | 4 | |
| #3 | Germany | 3 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Packaging and shipping | |
| #3 | Foods and drinks | |
| #4 | Chemical engineering | |
| #5 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Soldering, welding and flame cutting | |
| #2 | Containers for goods storage | |
| #3 | Sucrose production | |
| #4 | Separation | |
| #5 | Water treatment |
| # | Name | Total Patents |
|---|---|---|
| #1 | Meyer Amel R | 3 |
| #2 | Bieker Lawrence W | 2 |
| #3 | Babcock Harry L | 1 |
| #4 | Prager Frank D | 1 |
| #5 | Lewis William J | 1 |
| #6 | Seddig Robert E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE934243C | Device for under-powder welding on vertical surfaces | |
| DE930939C | Device for arc welding under powder on vertical and curved surfaces | |
| US2527788A | Sludge blanket clarifier with outward and upward recirculation of sludge | |
| US2458673A | Filter underdrain | |
| US2395508A | Liquid treatment | |
| US2024327A | Tank |