| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 6 | |
| #2 | Australia | 5 | |
| #3 | Brazil | 5 | |
| #4 | Canada | 5 | |
| #5 | China | 5 | |
| #6 | EAPO (Eurasian Patent Organization) | 5 | |
| #7 | EPO (European Patent Office) | 5 | |
| #8 | United States | 5 | |
| #9 | Mexico | 4 | |
| #10 | Ukraine | 4 | |
| #11 | WIPO (World Intellectual Property Organization) | 4 | |
| #12 | Republic of Korea | 3 | |
| #13 | New Zealand | 3 | |
| #14 | Belgium | 2 | |
| #15 | Colombia | 2 | |
| #16 | France | 2 | |
| #17 | United Kingdom | 2 | |
| #18 | Israel | 2 | |
| #19 | Italy | 2 | |
| #20 | Malaysia | 2 | |
| #21 | Netherlands | 2 | |
| #22 | Hungary | 1 | |
| #23 | Philippines | 1 | |
| #24 | Serbia | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machines | |
| #3 | Control |
| # | Technology | |
|---|---|---|
| #1 | Venting or aerating devices | |
| #2 | Unspecified technologies | |
| #3 | Pistons and sealings | |
| #4 | Systems controlling non-electric variables | |
| #5 | Servomotors | |
| #6 | Pipe-line systems |
| # | Name | Total Patents |
|---|---|---|
| #1 | Esveldt Vincent | 33 |
| #2 | Jansen Jelte Adriaan | 11 |
| #3 | Weevers Henri Hermann | 8 |
| #4 | Verwoerd Gerrit H | 7 |
| #5 | Vincent Esveldt | 5 |
| #6 | Weevers Henri H | 2 |
| #7 | Weevers Henri Herman | 2 |
| #8 | Jelte Adriaan Jansen | 2 |
| #9 | Verwoerd Gerrrit H | 1 |
| #10 | Wisselink Gerhard Johan | 1 |
| Publication | Filing date | Title |
|---|---|---|
| HUE035708T2 | Pipe branching manifold and method of operating the same | |
| EP2960560A1 | High integrity pressure protecting system for a fluid line | |
| RS52832B | Valve | |
| DE102007007664B3 | Throttle valve e.g. for undersea oil and gas supply, has permanent magnet on adjustment element to provide rotation of adjustment element | |
| DE10312753A1 | Annular gap seal for a valve | |
| DE4320748C1 | Monitoring arrangement | |
| DE3807230A1 | Device for blocking and opening a flow passage | |
| DE3731349A1 | VALVE FROM A HOUSING WITH A CYLINDRICAL FLOW PASSAGE | |
| DE3610965A1 | CHECK VALVE |