| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | Russian Federation | 3 | |
| #3 | United States | 3 | |
| #4 | Brazil | 2 | |
| #5 | China | 1 | |
| #6 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pipes | |
| #2 | Shaping of plastics | |
| #3 | Fillers | |
| #4 | Certain plastics | |
| #5 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Van Der Donk Cornelis Augustinus | 8 |
| #2 | Cornelis Augustinus Van Der Donk | 2 |
| #3 | Van Der Donk Kornelis Augyustinus | 2 |
| #4 | Van Der Donk Kornelis Augjustinus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2016069488A1 | Reinforcing sleeve for a coupling, assembly of a reinforcing sleeve and a coupling, method of welding of for instance a multi layer conduit to the assembly | |
| US2014353964A1 | Connecting piece for multilayered conduits, method of connecting, and an assembly obtained by the method | |
| EP2784365A1 | Connecting piece for multilayered conduits, and method of connecting, and an assembly obtained by the method |