| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 18 | |
| #2 | Canada | 8 |
| # | Industry | |
|---|---|---|
| #1 | Transport |
| # | Technology | |
|---|---|---|
| #1 | Couplings | |
| #2 | Rail vehicle suspensions | |
| #3 | Railway bodies | |
| #4 | Locomotives |
| # | Name | Total Patents |
|---|---|---|
| #1 | Pflager Harry M | 26 |
| Publication | Filing date | Title |
|---|---|---|
| US1401553A | Booster-motor support | |
| US1357928A | Mounting for locomotive booster-motors | |
| CA191465A | Car construction | |
| CA187419A | Car construction | |
| CA187418A | Car construction | |
| CA187172A | Electric locomotive bed | |
| CA173681A | Locomotive bed | |
| US1147430A | Car-truck. | |
| US1147429A | Car construction. | |
| US1101955A | Car construction. | |
| US1078638A | Locomotive-tender frame. | |
| US1021207A | Car construction. | |
| US995560A | Car construction. | |
| CA131103A | Car | |
| US999253A | Car construction. | |
| US979030A | Car construction. | |
| US863871A | Car-underframe. | |
| US999252A | Friction draft-gear for railroad-cars. | |
| US821735A | Combined brace and draw-bar pocket for car-body bolsters. | |
| US827749A | Draw-bar spring-pocket attachment for metal car-underframes. |