| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 10 | |
| #2 | Belgium | 2 | |
| #3 | France | 2 | |
| #4 | United Kingdom | 2 | |
| #5 | Austria | 1 | |
| #6 | Switzerland | 1 | |
| #7 | Denmark | 1 | |
| #8 | EPO (European Patent Office) | 1 | |
| #9 | Italy | 1 | |
| #10 | Sweden | 1 | |
| #11 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Milling | |
| #2 | Dredging | |
| #3 | Casting metal |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hoof Erhard | 10 |
| #2 | Hoffmann Manfred | 3 |
| #3 | Beier Josef | 3 |
| #4 | Hoof E | 2 |
| #5 | Hoffmann M | 2 |
| #6 | Hoffmann Manfred Dr | 1 |
| #7 | Hoff Erhard | 1 |
| #8 | Hoffman Dr Manfred | 1 |
| #9 | Josef Beier | 1 |
| #10 | Beier J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3905492A1 | PROTECTIVE SHIELD FOR WASHER BREAKER ROTORS | |
| DE3837405A1 | Device for removing feeders | |
| SE8504647D0 | Hammer mill with hammers mounted between rotor discs and with contact facing that stand out from the rotor discs | |
| DK455485D0 | Hammer mill with the rotor discs located hammer | |
| DE3438706A1 | Device for shredding sheet metal and similar material | |
| DE3421431A1 | Shredding device | |
| DE3406285A1 | HAMMER BREAKER WITH HAMMER ARRANGED FROM THE ROTOR DISC | |
| DE2302085A1 | ARMORING OF TUBE MILLS |