| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 10 | |
| #2 | Canada | 6 | |
| #3 | EPO (European Patent Office) | 2 | |
| #4 | Brazil | 1 | |
| #5 | Mexico | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Transport | |
| #3 | Machines |
| # | Technology | |
|---|---|---|
| #1 | Machines for making railways | |
| #2 | Guiding railway traffic | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies |
| # | Name | Total Patents |
|---|---|---|
| #1 | Remington James A | 11 |
| #2 | Young Keith | 6 |
| #3 | Kuhn Stephen R | 5 |
| #4 | Farrell Arthur W | 4 |
| #5 | Fiorenzo Albert V | 4 |
| #6 | Hoyer Ray | 2 |
| #7 | Farrell A W | 1 |
| #8 | Mitchell Frederick S | 1 |
| #9 | Frank Earl E | 1 |
| #10 | Baker Tomas S Jr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US5236125A | Guard rail assembly support block | |
| US5238186A | Guard rail assembly hook | |
| US5176318A | Guard rail assembly | |
| US5312075A | Railroad frog | |
| US5104041A | Rail brace assembly | |
| CA2021058A1 | Railroad switch machine | |
| US4938438A | Railroad switch stand | |
| US4824015A | Rail brace | |
| US4770342A | Adjustable rail brace | |
| US4738418A | Adjustable switch point guard |