| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 13 | |
| #2 | Canada | 5 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Transport | |
| #3 | Consumer goods | |
| #4 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Unspecified technologies | |
| #2 | Ice-boxes | |
| #3 | Railway bodies | |
| #4 | Railway brakes | |
| #5 | Pistons and sealings | |
| #6 | Clutches and brakes |
| # | Name | Total Patents |
|---|---|---|
| #1 | Hull George A | 7 |
| #2 | O'Connor Arthur F | 6 |
| #3 | Gillies William R | 2 |
| #4 | John Lundvall | 1 |
| #5 | Cohen Louis L | 1 |
| #6 | Lundvall John S | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US2016388A | Brake mechanism | |
| US2015902A | Ice bunker | |
| US1899980A | Support construction | |
| US1941814A | Well trap | |
| US1861226A | Handwheel and guard attachment | |
| US1943979A | Refrigerator car | |
| US1866085A | Refrigerator car | |
| US1861225A | Tank handhole and cover | |
| US1969133A | Brake drum | |
| US1870911A | Refrigerator car | |
| US1853127A | Refrigerator car | |
| US1604772A | Drain trap | |
| US1502184A | Drain trap | |
| CA303828A | Hand hole closure | |
| CA312807A | Refrigerator car | |
| CA279821A | Refrigerator air circulation | |
| CA289476A | Refrigerator car | |
| CA378657A | Brake mechanism |