| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 7 | |
| #2 | Switzerland | 5 | |
| #3 | Spain | 1 | |
| #4 | United Kingdom | 1 | |
| #5 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Electrical machinery and energy | |
| #2 | Measurement | |
| #3 | Machines | |
| #4 | Thermal processes | |
| #5 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Dynamo-electric machines | |
| #2 | Electromechanical clocks | |
| #3 | Burners | |
| #4 | Unspecified technologies | |
| #5 | Building materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Michl Robert | 11 |
| #2 | Robert Michl | 3 |
| Publication | Filing date | Title |
|---|---|---|
| GB191022384A | Improvements in Bunsen Burners. | |
| US1064153A | Bunsen burner. |