| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | Switzerland | 2 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | France | 2 | |
| #5 | Austria | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Rotary-pistons | |
| #3 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fend Heinrich | 6 |
| Publication | Filing date | Title |
|---|---|---|
| EP1340935A1 | Device for pressing together two pipe flanges where the thrust pieces are made of a Cu-Ni alloy | |
| DE19627841A1 | Pipe end joining clamp | |
| EP0571687A1 | Device for pressing together tow conically shaped pipe flanges | |
| ATA674575A | Flange connection, especially for components of vacuum apparatus |