| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 64 | |
| #2 | Canada | 18 | |
| #3 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Packaging and shipping | |
| #2 | Transport | |
| #3 | Machines | |
| #4 | Engines, pumps and turbines | |
| #5 | Mechanical elements | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Lifting and pushing | |
| #2 | Unspecified technologies | |
| #3 | Gearing | |
| #4 | Guiding railway traffic | |
| #5 | Machines for making railways | |
| #6 | Internal-combustion piston engines | |
| #7 | Railway bodies | |
| #8 | Railway equipment | |
| #9 | Steam turbines | |
| #10 | Rail vehicle suspensions |
| # | Name | Total Patents |
|---|---|---|
| #1 | Gormley Frank L | 30 |
| #2 | Brown Hugh S | 8 |
| #3 | Dwight Richards | 7 |
| #4 | Jenkins Merrill L | 6 |
| #5 | Dyer Walter C | 4 |
| #6 | Benson Fisher Raymond | 3 |
| #7 | Harkless Merl J | 3 |
| #8 | Miller Claud T | 3 |
| #9 | Comfort Samuel T | 2 |
| #10 | Penrose Edward R | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US2657906A | Earth drill | |
| US2577518A | Fuel injection engine | |
| US2420910A | Hydraulic jack | |
| US2418601A | Earth drill | |
| US2415219A | Variable gauge motor car | |
| US2390279A | Internal-combustion engine | |
| US2408394A | Diesel engine and method of operating same | |
| US2401317A | Motorcar | |
| US2401275A | Crossing gate | |
| US2401316A | Motorcar | |
| US2298981A | Rocker arm assembly | |
| US2352310A | Railway crossing gate | |
| US2311205A | Push car | |
| US2160543A | Cable reel jack | |
| US2165367A | Hydraulic lifting jack | |
| US2165366A | Swivel cap for lifting jacks | |
| US2207447A | Motor truck | |
| US2166106A | Ball-bearing screw and nut for lifting jacks and similar devices | |
| US2135938A | Lifting jack | |
| US2088835A | Railway car construction |