| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 9 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Machine tools | |
| #3 | Transport | |
| #4 | Measurement | |
| #5 | Engines, pumps and turbines | |
| #6 | Mechanical elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Bates Albert H | 7 |
| #2 | Grossman Daniel R | 2 |
| #3 | Colvin Robert H | 2 |
| #4 | Haling Otto W | 2 |
| #5 | Andrew Rives George | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2606671A | Supporting rack | |
| US2560549A | Piston ring splitting and trimming machine | |
| US2410819A | Ring boring machine | |
| US2566304A | Method of and machine for making piston rings | |
| US2341293A | Bearing member and method of making the same | |
| US2237477A | Heating and ventilating apparatus | |
| US2198812A | Automobile body heater | |
| US2292004A | Automobile body heater | |
| US2019287A | Cylinder gauge | |
| CA485252A | Piston ring splitting and trimming machine | |
| CA457828A | Ring boring machine | |
| CA396475A | Heating and ventilating apparatus | |
| CA466133A | Piston ring boring machine | |
| CA491664A | Ring boring machine |