| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | EPO (European Patent Office) | 5 | |
| #3 | South Africa | 3 | |
| #4 | Canada | 2 | |
| #5 | WIPO (World Intellectual Property Organization) | 2 | |
| #6 | Australia | 1 | |
| #7 | Czechia | 1 | |
| #8 | Hungary | 1 | |
| #9 | Portugal | 1 | |
| #10 | Slovakia | 1 | |
| #11 | Turkey | 1 | |
| #12 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Structural elements | |
| #2 | Shaping clay | |
| #3 | Unspecified technologies | |
| #4 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Dreizler Siegfried | 22 |
| #2 | Siegfried Dreizler | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE4120215A1 | Method of making a reinforcement spacer and spacer | |
| DE4036919A1 | Protective cap for reinforcing rod end - comprises end and neck of polymer concrete enclosing cast plastics sleeve | |
| DE3829084A1 | CONCRETEABLE SPACER | |
| DE3803214A1 | Device for connecting the individual layers of a multilayered concrete slab | |
| DE3521345A1 | SPACERS FOR REINFORCEMENTS IN A FORMWORK |