| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 14 | |
| #2 | Austria | 1 | |
| #3 | Belgium | 1 | |
| #4 | Switzerland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Shaping clay | |
| #3 | Roof coverings | |
| #4 | Structural elements | |
| #5 | Measuring electric variables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Menzel Martin | 16 |
| #2 | Menzel Karl-Heinz | 2 |
| #3 | Martin Menzel | 1 |
| #4 | Menzel Karl-Heinz Dipl Ing | 1 |