| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 23 | |
| #2 | Switzerland | 8 | |
| #3 | France | 7 | |
| #4 | Austria | 4 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Machines | |
| #3 | Agriculture | |
| #4 | Civil engineering | |
| #5 | Environmental technology | |
| #6 | Engines, pumps and turbines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gebrueder Eirich | 8 |
| #2 | Eirich Gustav | 5 |
| #3 | Eirich Joseph | 4 |
| #4 | Eirich Willi | 1 |
| #5 | Reich Hermann Friedrich Heinri | 1 |
| #6 | Reich Heinz | 1 |
| #7 | Eirich Wilhelm | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE892676C | Process for increasing the performance of shredding machines for viscous and elastic waste materials | |
| DE486947C | Lid closure for the emptying opening of mixers, agitators, Kollergengen u. Like. For masses of all kinds, namely ceramic masses | |
| DE437869C | Mixing machine with height-adjustable mixing tools for concrete, mortar or the like and other earthy or mineral masses |