| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 5 | |
| #2 | Brazil | 3 | |
| #3 | Canada | 3 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | United Kingdom | 1 |
| # | Industry | |
|---|---|---|
| #1 | Transport | |
| #2 | Civil engineering | |
| #3 | Machines | |
| #4 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Railway equipment | |
| #2 | Machines for making railways | |
| #3 | Unspecified technologies | |
| #4 | Locomotives | |
| #5 | Measuring force, work and fluid pressure |
| # | Name | Total Patents |
|---|---|---|
| #1 | Appleby Glen | 4 |
| #2 | Redfield Matthew | 4 |
| #3 | Schnorr Charles | 3 |
| #4 | Petrie Charles A | 3 |
| #5 | Singleton Steven D | 3 |
| #6 | Redfield Matthew P | 3 |
| #7 | Lucke Christopher Alan | 2 |
| #8 | Urmson W Thomas | 2 |
| #9 | Matthew Redfield | 2 |
| #10 | Charles A Petrie | 2 |
| Publication | Filing date | Title |
|---|---|---|
| CA2869485A1 | Top of rail resilient bar | |
| US2014060972A1 | Top of rail resilient bar | |
| CA2881786A1 | Gauge face lubrication | |
| CA2794874A1 | Optimizing rail track performance |