Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10087108 | Cementitious compositions and methods of making and using the same | Walter David Young | 2018-10-02 |
| 9908814 | Cementitious compositions and methods of making and using the same | Walter David Young | 2018-03-06 |
| 5579553 | Ballast broom with auger and method | — | 1996-12-03 |
| 5507546 | Underride protection bumper | — | 1996-04-16 |
| 5394586 | Ballast sweeper dust control | — | 1995-03-07 |
| 5331899 | Tie plate manipulator vehicle and method | — | 1994-07-26 |
| 4940001 | Rail spike cleaning apparatus | — | 1990-07-10 |
| 4903611 | Anchor spreader apparatus and method | — | 1990-02-27 |
| 4722283 | Magnetic pick up system for rail beds and method | — | 1988-02-02 |
| 4691639 | Rail tie plate placing vehicle and method | — | 1987-09-08 |
| 4561198 | Method and apparatus for scarifying a railroad crib | — | 1985-12-31 |
| 4478152 | Railroad scrap pick up machine | — | 1984-10-23 |
| RE31619 | Sweeper bristle and method of making | — | 1984-07-03 |
| 4367564 | Sweeper bristle and method of making | — | 1983-01-11 |
| 4225429 | Vehicle for cleaning railway roadbeds of magnetic articles | — | 1980-09-30 |