| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 3 | |
| #2 | Austria | 2 | |
| #3 | Belgium | 2 | |
| #4 | Switzerland | 2 | |
| #5 | EPO (European Patent Office) | 2 | |
| #6 | France | 2 | |
| #7 | Denmark | 1 | |
| #8 | Finland | 1 | |
| #9 | Luxembourg | 1 | |
| #10 | Netherlands | 1 | |
| #11 | Norway | 1 | |
| #12 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Structural elements | |
| #2 | Scaffolding | |
| #3 | Shaping clay | |
| #4 | Cranes | |
| #5 | General building constructions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Riffel Ernst | 11 |
| #2 | Riffel Hans | 10 |
| #3 | Hans Riffel | 1 |
| #4 | Ernst Riffel | 1 |
| #5 | Riffel E | 1 |
| #6 | Riffel H | 1 |
| Publication | Filing date | Title |
|---|---|---|
| EP0945239A2 | Process and plant for making walls | |
| DE19816279A1 | Multi-element roof or ceiling plate for buildings | |
| DE19814612A1 | Device for transporting components | |
| FR2589922A1 | Device for applying mortar to a masonry | |
| DE3406108A1 | Apparatus for applying mortar to a masonry structure | |
| CH638861A5 | Apparatus for producing vertical wall panels from masonry blocks |