| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 1 | |
| #4 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Engines, pumps and turbines | |
| #4 | Mechanical elements | |
| #5 | Consumer goods | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials | |
| #2 | Centrifuges | |
| #3 | Supplying combustion engines | |
| #4 | Smoking accessories | |
| #5 | Locks | |
| #6 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Sewerin Hermann | 3 |
| #2 | Sewerin Heinrich | 1 |
| #3 | Sewerin Willi | 1 |
| #4 | Hermann Sewerin | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB276234A | Improved gas indicator |