| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 53 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement | |
| #2 | Machine tools | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Measuring distances | |
| #2 | Machines for making clocks | |
| #3 | Accessories for machine tools | |
| #4 | Working stone | |
| #5 | Shafts | |
| #6 | Mechanically-driven clocks | |
| #7 | Turning | |
| #8 | Pumps | |
| #9 | Grinding or polishing devices | |
| #10 | Rotary-pistons |
| # | Name | Total Patents |
|---|---|---|
| #1 | Robert Annen | 36 |
| #2 | Annen Robert | 15 |
| Publication | Filing date | Title |
|---|---|---|
| CH582875A5 | Gyroscope with spherical gyrostat - has improved bearings which limit vertical and lateral play | |
| CH569957A5 | Maintaining axis of gyroscope vertical - makes use of mercury mass which changes position when force is applied | |
| CH572608A5 | Spherical supports for fluid driven gyroscope wheel - contain channels enabling fluid flow to drive and suspend wheel | |
| CH120603A | Adjustable flow piston pump. | |
| CA416371A | Aircraft pilotage control device |