| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | United Kingdom | 6 | |
| #3 | Canada | 4 | |
| #4 | Austria | 2 | |
| #5 | Switzerland | 1 | |
| #6 | Denmark | 1 | |
| #7 | Spain | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machines | |
| #3 | Mechanical elements | |
| #4 | Engines, pumps and turbines | |
| #5 | Furniture and games |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Shafts | |
| #3 | Time-interval measuring | |
| #4 | Unspecified technologies | |
| #5 | Skates | |
| #6 | Non-positive-displacement pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Klahn Emil | 21 |
| #2 | Strauss Gustavus E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1250592A | Non-magnetic compass. | |
| US1289813A | Compass-gyroscope. | |
| GB101367A | Improvements in Gyroscopes. | |
| US1263325A | Fluid-driven motor. | |
| GB191409351A | Improvements in Non-Magnetic Compass. | |
| GB191329010A | An Improved Gyroscopic Compass. | |
| CA153818A | Gyroscope | |
| US1218275A | Ball-bearing roller. | |
| GB191229082A | An Improved Gyroscope which may be used in Combination with a Non-magnetic Compass or with other Instrument or Apparatus. | |
| GB191220515A | An Improved Chronometer. | |
| GB191219555A | An Improved Gyroscope. | |
| US1192532A | Gyroscope. | |
| US1212503A | Ball-bearing roller. | |
| CA63733A | Pedal | |
| US799008A | Ball-bearing. | |
| CA54699A | Wheel hub | |
| CA46189A | Bottle |