| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 90 | |
| #2 | Canada | 13 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Mechanical elements | |
| #3 | Machines | |
| #4 | Transport | |
| #5 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Cranes | |
| #2 | Winches | |
| #3 | Clutches and brakes | |
| #4 | Unspecified technologies | |
| #5 | Gearing | |
| #6 | Railway brakes | |
| #7 | Transport or storage devices | |
| #8 | Shafts | |
| #9 | Railway systems | |
| #10 | Weighing |
| # | Name | Total Patents |
|---|---|---|
| #1 | Norris Almon E | 103 |
| #2 | Ecks John | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US1833032A | Tractor | |
| US1769269A | Ditcher back-filler | |
| US1755187A | Capstan | |
| US1671444A | Grab | |
| US1609421A | Clutch and brake mechanism | |
| US1671681A | Hoisting apparatus | |
| US1609420A | Car dumper | |
| US1609419A | Power-operated drum or winch apparatus | |
| US1671443A | Clutch | |
| US1644942A | Rail-clamping mechanism | |
| US1573324A | Friction clutch | |
| US1534538A | Hoisting apparatus | |
| US1547675A | Buffer device | |
| US1571732A | Car-haulage plant | |
| US1671682A | Vehicle construction | |
| US1578749A | Rail-clamping mechanism | |
| US1632038A | Mechanical movement | |
| US1533512A | Bucket | |
| US1544678A | Clutch | |
| US1541064A | Grab |