| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines | |
| #2 | Machines | |
| #3 | Transport | |
| #4 | Measurement | |
| #5 | Mechanical elements | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Motor vehicles | |
| #3 | Supplying combustion engines | |
| #4 | Gearing | |
| #5 | Internal-combustion piston engines | |
| #6 | Pumps | |
| #7 | Vehicle suspension arrangements | |
| #8 | Time-interval measuring | |
| #9 | Animal care |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gemmer George A | 12 |
| #2 | Campbell Clarence E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2639538A | Bait box | |
| US2137337A | Gear shifting mechanism | |
| US2107606A | Motor vehicle construction | |
| US1998365A | Steering gear for vehicles | |
| US1641161A | Time electric switch | |
| US1499768A | Vehicle spring | |
| US829006A | Steering device. | |
| US732628A | Pump-operating mechanism. | |
| US726671A | Vaporizer for explosive-engines. | |
| US722008A | Pump for combustion-engines. | |
| CA500111A | Bait box | |
| CA214431A | Automobile brake adjuster |