| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | China | 2 | |
| #4 | Germany | 2 | |
| #5 | Japan | 2 | |
| #6 | Australia | 1 | |
| #7 | Brazil | 1 | |
| #8 | Canada | 1 | |
| #9 | Czechia | 1 | |
| #10 | United Kingdom | 1 | |
| #11 | Italy | 1 | |
| #12 | Republic of Korea | 1 | |
| #13 | South Africa | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Adams Siegbert | 9 |
| #2 | Heitmann Thomas | 8 |
| #3 | Brueggestrath Bernd | 5 |
| #4 | Kappe Rudolf | 3 |
| #5 | Fehringer Hans-Juergen | 2 |
| #6 | Heitmann Tomas | 1 |
| #7 | Heitmann Thomas Dipl-Ing | 1 |
| #8 | Adams Horst Heinz | 1 |
| #9 | Adams Siegbert Dipl-Ing | 1 |
| #10 | Marbach Johannes | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE102007036244A1 | Shut-off valve with anchored sealing element | |
| US5934647A | Metal seal for valve | |
| EP0663549A1 | Metallic seal for butterfly valves | |
| US5377954A | Valve with seal ring having edge-welded laminations | |
| US5357997A | Valve with segmented retainer ring | |
| US5275374A | Disc valve with protected open disc | |
| DE4142626A1 | Metallic sealing ball valve |