| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 30 | |
| #2 | Switzerland | 7 | |
| #3 | France | 4 | |
| #4 | Austria | 2 | |
| #5 | Belgium | 2 | |
| #6 | United States | 2 | |
| #7 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines | |
| #5 | Chemical engineering | |
| #6 | Mechanical elements | |
| #7 | Materials and metallurgy | |
| #8 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Percussive tools | |
| #3 | Pumps | |
| #4 | Generating mechanical vibrations | |
| #5 | Gearing | |
| #6 | Accessories for machine tools | |
| #7 | Mixing | |
| #8 | Rotary-pistons | |
| #9 | Casting metal | |
| #10 | Transport or storage devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Flottmann Friedrich Heinrich | 8 |
| #2 | Flottmann Dipl-Ing Friedrich H | 6 |
| #3 | Kirschbaum Heinrich | 5 |
| #4 | Wittlich Norbert | 5 |
| #5 | Friedrich Heinrich Dipl-Ing Fl | 4 |
| #6 | Heinrich Kirschbaum | 2 |
| #7 | Lackmann Max | 2 |
| #8 | Norbert Wittlich | 2 |
| #9 | Heinrich Otho | 2 |
| #10 | Venediger Dr-Ing Herbert | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE1703754A1 | Hydraulically operated impact device | |
| DE1703753A1 | Hydraulically operated impact device | |
| US3035548A | Hydraulically operated percussion devices | |
| US2965362A | Device for mixing and homogenizing | |
| DE1012880B | Rotary hammer with fork drill support | |
| DE973101C | Rotary hammer support with rotary hammer | |
| CA651732A | Control system for a hydraulically operated percussion device |