| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 22 | |
| #2 | United States | 2 | |
| #3 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Couplings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Regan William J | 13 |
| #2 | George Enoch Jr | 10 |
| #3 | Kelso William | 4 |
| #4 | Mcconway William Jr | 2 |
| #5 | Mcconway Wiliam Jr | 1 |
| #6 | Milliken Isaac Hamilton | 1 |
| #7 | Ritter Gilbert P | 1 |
| #8 | Buhoup Harry C | 1 |
| #9 | Lenherr Albert J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB185657A | Improvements in railway car couplers | |
| CA143676A | Car coupler | |
| US738729A | Coupling. | |
| US677435A | Car-coupling. | |
| CA286524A | Railway draft appliance | |
| CA298916A | Car-coupler | |
| CA282720A | Car coupler | |
| CA353103A | Railway car draft appliance | |
| CA319847A | Railway car coupler | |
| CA344744A | Railway car coupler | |
| CA344743A | Railway car coupler | |
| CA286525A | Railway draft appliance | |
| CA294965A | Railway draft appliance | |
| CA315072A | Railway draft appliance | |
| CA290198A | Railway vehicle draft mechanism | |
| CA314857A | Car coupler | |
| CA273524A | Car coupler | |
| CA276667A | Car coupler | |
| CA324572A | Railway car coupler | |
| CA319846A | Railway draft appliance |