| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Roof coverings | |
| #3 | Construction of bridges | |
| #4 | Finishing work on buildings | |
| #5 | Building materials | |
| #6 | Hydraulic engineering | |
| #7 | Foundations and excavations | |
| #8 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hillen H F J M | 9 |
| #2 | Hillen H | 1 |
| #3 | Hillen Henricus | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2450946A1 | Water-tight coating for concrete surfaces - based on elastic, pref. epoxy resin | |
| NL7413201A | Protection of concrete surfaces - using a layer of glass applied with or in a resin adhesive mortar | |
| NL7314257A | Underwater aggregation system for materials - is for cement mortar or asphalt using guided flat interconnected sleeves | |
| NL7313358A | Finishing layer securing process to floor base - forms holes in layer for filling with synthetic resin mortar |