| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | Switzerland | 4 | |
| #3 | France | 4 | |
| #4 | Austria | 3 | |
| #5 | Canada | 3 | |
| #6 | Finland | 2 | |
| #7 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Furniture and games | |
| #3 | Agriculture | |
| #4 | Machines | |
| #5 | Thermal processes |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Swimming pools | |
| #3 | Theater devices | |
| #4 | Unspecified technologies | |
| #5 | Structural elements | |
| #6 | Crop agriculture | |
| #7 | Finishing work on buildings | |
| #8 | Controlling combustion | |
| #9 | Ignition and extinguishing | |
| #10 | Harvesting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bartels Friedrich | 14 |
| #2 | Friedrich Bartels | 4 |
| #3 | Brose Paul | 3 |
| #4 | Bartels F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE3341512A1 | Ignition device for a combustion plant burning liquid fuel | |
| DE3341511A1 | Method and device for monitoring the serviceability of a glow-discharge tube | |
| DE3331478A1 | Process and apparatus for the optical monitoring of flames | |
| DE3232963A1 | Radiation detector | |
| CA956428A | Element for constructing temporary wall structures | |
| CA948823A | Load bearing structure | |
| CA940262A | Wall structures | |
| GB190724940A | Improved Process for the Production of a Decorative Covering for Walls and Ceilings. |