| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 21 | |
| #2 | Canada | 2 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Civil engineering | |
| #5 | Engines, pumps and turbines | |
| #6 | Agriculture |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Casting metal | |
| #3 | Foundry moulding | |
| #4 | Making gears or toothed racks | |
| #5 | Tools for connecting or disengaging | |
| #6 | Unspecified technologies | |
| #7 | Foundations and excavations | |
| #8 | Milling | |
| #9 | Rotary-pistons | |
| #10 | Planting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Nichols William H | 23 |
| #2 | Ferguson James P | 1 |
| #3 | Nichols George H | 1 |
| #4 | Herreshoff John B F | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2277346A | Valve guide puller | |
| US2193293A | Pile driver | |
| US2083858A | Hand-fed machine tool | |
| US2145991A | Double staker for check rower planters | |
| US2040668A | Pile driving attachment | |
| US1997228A | Conjugate curve generator | |
| US1997227A | Rotor cutting machine | |
| US2076664A | Pump | |
| US1721969A | Apparatus for casting chill rolls and the like | |
| US1543229A | Pattern for making rolls | |
| US1716834A | Electrical receptacle | |
| US1505724A | Method of molding | |
| US1455091A | Method and apparatus for casting rolls | |
| US1336260A | Chill-mold | |
| US1374517A | Method of making chilled rolls | |
| US1336259A | Chill-mold | |
| US1144153A | Insulator. | |
| US1032764A | Thread-gage. | |
| US779438A | Puzzle. | |
| US760473A | Coupling for windmills. |