| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 234 | |
| #2 | Canada | 8 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering | |
| #3 | Machine tools | |
| #4 | Machines | |
| #5 | Consumer goods | |
| #6 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Railway bodies | |
| #2 | Roof coverings | |
| #3 | Motor vehicles | |
| #4 | Unspecified technologies | |
| #5 | Punching metal | |
| #6 | Ice-boxes | |
| #7 | Clutches and brakes | |
| #8 | Unspecified technologies | |
| #9 | General building constructions | |
| #10 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | David Bonsall Charles | 133 |
| #2 | Murphy Walter P | 21 |
| #3 | Gilpin Garth G | 19 |
| #4 | Brewer William A | 11 |
| #5 | Small Arthur E | 8 |
| #6 | Murphy Clinton C | 6 |
| #7 | Bonsall Charles D | 5 |
| #8 | Hoffman John J | 5 |
| #9 | Tatum John J | 4 |
| #10 | Murphy Walter Patten | 3 |
| Publication | Filing date | Title |
|---|---|---|
| US2187219A | Floor rack for refrigerator cars | |
| US2100130A | Hatch construction | |
| US2101360A | Car roof | |
| US2155677A | Car roof | |
| US2100128A | Hatch construction | |
| US2100127A | Hatch construction | |
| US2085338A | Car roof | |
| US2092271A | Car roof | |
| US2100125A | Hatch construction | |
| US2102276A | Car roof | |
| US2102277A | Carline | |
| US2092293A | Car roof | |
| US2085311A | Car roof | |
| US2092277A | Freight car construction | |
| US2100126A | Hatch construction | |
| US2100124A | Hatch construction | |
| US2085540A | Car roof | |
| US2100123A | Hatch construction | |
| US2100122A | Hatch construction | |
| US2093756A | Car roof |