| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 8 | |
| #2 | France | 2 | |
| #3 | Italy | 2 | |
| #4 | Switzerland | 1 | |
| #5 | EPO (European Patent Office) | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Measurement | |
| #3 | Machine tools | |
| #4 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Shafts | |
| #2 | Pipes | |
| #3 | Pistons and sealings | |
| #4 | Clutches and brakes | |
| #5 | Analysing materials | |
| #6 | Unspecified technologies | |
| #7 | Making screws | |
| #8 | Testing of structures | |
| #9 | Turning |
| # | Name | Total Patents |
|---|---|---|
| #1 | Leidenfrost Reinhold | 9 |
| #2 | Leidenfrost Reinhold Dipl Ing | 2 |
| #3 | Reinhold Leidenfrost | 1 |
| #4 | Leidenfrost Reinhold Dipl-Ing | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE4119465A1 | DEVICE FOR TRANSMITTING A HYDRAULIC PRESSURE FROM A FIXED OUTDOOR PART TO A ROTATING SHAFT | |
| DE4119464A1 | Hydraulically actuated friction clutch - is supplied with oil through fixed housing supported on hydraulic bearings | |
| DE2351006A1 | Labyrinth seal with contact packing element - has two concentric rings with mutual play forming one piece with sealing gap |