Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12221144 | Railroad switch device for moving railroad switch points | Dilson dos Santos Rodrigues | 2025-02-11 |
| 12104331 | Saborage-resistant switch device for moving railroad switch points | Dilson dos Santos Rodrigues | 2024-10-01 |
| 12091071 | High-speed railway switch device for moving railroad switch points | Dilson dos Santos Rodrigues | 2024-09-17 |
| 11136959 | Air concentration tower for vertical wind turbine | Dilson dos Santos Rodrigues | 2021-10-05 |
| 10539115 | Vertical wind turbine | Dilson dos Santos Rodrigues | 2020-01-21 |
| 10384700 | Method of indicating a railway switch status | David Ruskauff | 2019-08-20 |
| 9586603 | Railway dark territory switch automation | David Ruskauff | 2017-03-07 |
| 7946538 | External point spring locking device | Dilson Santos Rodrigues, Rick Presley | 2011-05-24 |
| 7861979 | Dragging equipment detector | — | 2011-01-04 |
| 7416159 | Method and apparatus for controlling railway switches | John Calvin Posey, Jr. | 2008-08-26 |