| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 80 | |
| #2 | United Kingdom | 12 | |
| #3 | France | 9 | |
| #4 | Germany | 2 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machines | |
| #3 | Chemical engineering | |
| #4 | Packaging and shipping | |
| #5 | Transport | |
| #6 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Foundry moulding | |
| #2 | Milling | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies | |
| #5 | Casting metal | |
| #6 | Containers for goods storage | |
| #7 | Mixing | |
| #8 | Shaping clay | |
| #9 | Locomotives | |
| #10 | Shafts |
| # | Name | Total Patents |
|---|---|---|
| #1 | Piper Walter F | 49 |
| #2 | Beardsley Elmer O | 35 |
| #3 | Naylor Walter E | 9 |
| #4 | Clay Murray G | 6 |
| #5 | George Furman | 3 |
| #6 | Frank Briner | 1 |
| #7 | Hund Ernest A | 1 |
| #8 | Randolph Arbuckle | 1 |
| #9 | Ervin Naylor Walter | 1 |
| #10 | Peter Friis | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB628891A | Rotary crushing mills | |
| US2384389A | Portable hopper | |
| US2384366A | Truck driving mechanism | |
| US2422290A | Flask filling apparatus | |
| US2368116A | Flask filling apparatus | |
| US2381103A | Portable hopper | |
| US2355148A | Electrically propelled truck | |
| GB561102A | Mulling apparatus | |
| US2264610A | Method of conditioning or treating molding sand | |
| US2309036A | Apparatus for conditioning molding sand | |
| US2306422A | Mulling apparatus | |
| US2339001A | Molding machine | |
| US2318797A | Mulling apparatus | |
| US2303319A | Mulling apparatus | |
| US2303387A | Mulling apparatus | |
| US2258392A | Mulling apparatus | |
| US2274502A | Mulling apparatus | |
| US2213716A | Apparatus for conditioning molding sand | |
| GB513981A | Mulling apparatus | |
| US2194721A | Screening apparatus |