| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | EPO (European Patent Office) | 2 | |
| #3 | United States | 2 | |
| #4 | WIPO (World Intellectual Property Organization) | 2 | |
| #5 | China | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools | |
| #3 | Machines | |
| #4 | Materials and metallurgy | |
| #5 | Surface technology and coating | |
| #6 | Environmental technology |
| # | Technology | |
|---|---|---|
| #1 | Springs | |
| #2 | Nails | |
| #3 | Punching metal | |
| #4 | Unspecified technologies | |
| #5 | Blasting | |
| #6 | Gas-flow silencers for machines | |
| #7 | Metal tempering | |
| #8 | Pipes | |
| #9 | Coating metallic material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Brueckner Lothar | 5 |
| #2 | Kaestner August | 3 |
| #3 | Buchhagen Peter | 2 |
| #4 | Weller Hermann | 2 |
| #5 | Hutt Helmut | 2 |
| #6 | Brueckner Lothar Dr Ing | 1 |
| #7 | Lothar Brueckner | 1 |
| #8 | Kaestner August Dr Ing | 1 |
| #9 | Fadini Rolf | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE102010020833A1 | Surface hardening method of spring such as plate spring, involves using ultrasonic balls that are accelerated by sonotrode for radiating ultrasonic waves onto underside, inner side and outer side of spring | |
| DE102009019856A1 | Disk spring arrangement, has laminated disk springs arranged together forming laminated disk spring, and intermediate layers arranged between springs to enable relative motion of springs that are separated by shearing strain of layers | |
| DE102008017882A1 | spring means | |
| DE102008015061A1 | Process for the surface treatment of a spring | |
| DE102006029411A1 | Well spring |