| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 7 | |
| #2 | United States | 5 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Environmental technology | |
| #3 | Engines, pumps and turbines | |
| #4 | Transport | |
| #5 | Consumer goods | |
| #6 | Thermal processes | |
| #7 | Civil engineering |
| # | Name | Total Patents |
|---|---|---|
| #1 | Carl Scholz | 4 |
| #2 | Scholz Carl | 2 |
| #3 | Carrick Gerald S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2063761A | Coal mining | |
| US1993249A | Fine coal feeder | |
| US1986365A | Briquetting machine | |
| US1428985A | Mine car | |
| DE326339C | Reversible transmission for drum washing machines | |
| DE319438C | Reversible transmission for drum washing machines | |
| US1218594A | Grate-bar. | |
| DE472339C | Diffuser for reaction turbines with an external gate valve | |
| DE514147C | Diffuser for reaction turbines |