| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 24 | |
| #2 | Canada | 9 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Machine tools | |
| #4 | Consumer goods | |
| #5 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | Rail vehicle suspensions | |
| #2 | Railway bodies | |
| #3 | Unspecified technologies | |
| #4 | Railway brakes | |
| #5 | Vehicle brake control systems | |
| #6 | Couplings | |
| #7 | Ice-boxes | |
| #8 | Unspecified technologies | |
| #9 | Doors and windows | |
| #10 | Making forged metal products |
| # | Name | Total Patents |
|---|---|---|
| #1 | Viberg Ernest R | 33 |
| #2 | Parker Wallace C | 1 |
| #3 | Linderblad Alfonz L | 1 |
| #4 | Atwood William S | 1 |
| #5 | Eric Elggren | 1 |
| #6 | Canfield Arthur J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2013224A | Journal box cover | |
| US2018428A | Journal box cover | |
| US1969865A | Articulated cover for journal boxes | |
| US1915458A | Journal box lid assembly | |
| US1769556A | Articulated car | |
| US1726872A | Articulated car | |
| US1733705A | Articulated car | |
| US1702327A | Dump-car-locking mechanism | |
| US1615857A | Bolster | |
| US1746749A | Box-car door | |
| US1663428A | Buffer mechanism for car doors | |
| US1756406A | Drawbar-key safety device | |
| US1609391A | Centering and supporting device for train pipes | |
| US1517182A | Truck construction | |
| US1609390A | Door hanger for cars | |
| US1451243A | Truck construction | |
| US1460773A | Forged brake-beam fulcrum and process of making same | |
| US1410277A | Refrigerator-car construction | |
| US1451242A | Nonfreezing waste outlet | |
| US1388391A | Brake-beam |