| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 8 | |
| #2 | Germany | 3 | |
| #3 | Austria | 1 | |
| #4 | Canada | 1 | |
| #5 | France | 1 | |
| #6 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Audio-visual technology | |
| #5 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Building materials | |
| #2 | Shaping clay | |
| #3 | Structural elements | |
| #4 | Finishing work on buildings | |
| #5 | Wheelchairs and sledges | |
| #6 | General building constructions | |
| #7 | Advertising | |
| #8 | Unspecified technologies | |
| #9 | Scaffolding |
| # | Name | Total Patents |
|---|---|---|
| #1 | Emil Metzger | 8 |
| #2 | Metzger Emil | 5 |
| #3 | Max Gideon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2110498A1 | Process for the production of granular, expanded ceramic materials |