| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Finishing work on buildings | |
| #2 | Shaping clay | |
| #3 | Structural elements | |
| #4 | Preparing clay | |
| #5 | General building constructions | |
| #6 | Presses |
| # | Name | Total Patents |
|---|---|---|
| #1 | Welzel Gottfried | 11 |
| Publication | Filing date | Title |
|---|---|---|
| DE3321339A1 | Pressing mould and pressing process for ram presses for producing all-round-profiled facing and construction elements from clay or other materials | |
| DE3312287A1 | Method for manufacturing prefabricated facing and wall components using laterally profiled ceramic building elements | |
| DE2639699A1 | Mould for mfr. of building panels profiled on all sides - makes recesses into the product for the fitting of steel reinforcements | |
| DE2633353A1 | Prefabricated ceramic cladding and facing panels mfr. - uses channelled recess side profiling for lattice wire reinforcing inlay |