| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 81 | |
| #2 | Switzerland | 19 | |
| #3 | United Kingdom | 4 | |
| #4 | Austria | 2 | |
| #5 | Denmark | 2 | |
| #6 | Belgium | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Electrical machinery and energy | |
| #3 | Control | |
| #4 | Thermal processes | |
| #5 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Buerkert Christian | 79 |
| #2 | Christian Buerkert | 18 |
| #3 | Egner Otto | 4 |
| #4 | Uhl Dipl-Ing Ernst | 2 |
| #5 | Karl Hans | 1 |
| #6 | Strittmatter Emil | 1 |
| #7 | Hettinger Gerhard | 1 |
| #8 | Otto Egner | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB1279509A | Improvements in or relating to plunger-type armature lifting magnets | |
| DE1958038A1 | Plunger type magnetic armature | |
| GB1009507A | Improvements in or relating to oil burners | |
| GB1003519A | Improvements in or relating to temperature-dependent electric switch devices | |
| GB725972A | Improvements in or relating to bar expansion regulators |