| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Netherlands | 5 | |
| #2 | Germany | 2 | |
| #3 | United Kingdom | 2 | |
| #4 | Canada | 1 | |
| #5 | Denmark | 1 | |
| #6 | France | 1 | |
| #7 | Italy | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Domestic heating systems | |
| #2 | Air-conditioning | |
| #3 | Fluid heaters | |
| #4 | Pipes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Van Vliet Cors | 5 |
| #2 | Vliet Cors Van | 3 |
| Publication | Filing date | Title |
|---|---|---|
| NL8301113A | Air heating device for a building or housing. | |
| NL8203812A | Building air-heating system - has heater in zones with separate burners serving different areas via distribution conduits | |
| NL8103413A | Air heating and ventilation system for a building or housing. | |
| NL8102240A | Clutch element. | |
| NL7406357A | Hot water supply. |