| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 109 | |
| #2 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Machines | |
| #3 | Civil engineering | |
| #4 | Packaging and shipping |
| # | Technology | |
|---|---|---|
| #1 | Railway bodies | |
| #2 | Unspecified technologies | |
| #3 | Rail vehicle suspensions | |
| #4 | Machines for making railways | |
| #5 | Unspecified technologies | |
| #6 | Railway brakes | |
| #7 | Couplings | |
| #8 | Transport or storage devices |
| # | Name | Total Patents |
|---|---|---|
| #1 | Neikirk John O | 23 |
| #2 | David Hindahl | 20 |
| #3 | Hart Harry S | 17 |
| #4 | Hart Harry Stillson | 14 |
| #5 | Hosceit William J | 11 |
| #6 | Meissner Otto W | 10 |
| #7 | Yost Winfield Hancock | 7 |
| #8 | Morey William E | 4 |
| #9 | Dorey George Binet | 4 |
| #10 | Neikirk John Oscar | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2248706A | Gearing device | |
| US2167362A | Car construction | |
| US2152885A | Car construction | |
| US2011155A | Car construction | |
| US2042528A | Car construction | |
| US1942702A | Control mechanism for hopper car doors | |
| US1882217A | Control mechanism for hopper car doors | |
| US1932021A | Car construction | |
| US1809850A | Latch for dump car doors | |
| US1804702A | Car construction | |
| US1813928A | Hopper car construction | |
| US1872451A | Dump car | |
| US1800832A | Ballast car | |
| US1716635A | Car-door lock | |
| US1706607A | Selective-dump car | |
| US1626825A | Railway dump car | |
| US1622718A | Latching device for car doors | |
| US1706610A | Controlled-discharge dump car | |
| US1710889A | Dump car | |
| US1598374A | Ratchet-control mechanism |