Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5595361 | Wing rail hold-down | Keith Young, Stephen R. Kuhn | 1997-01-21 |
| 5560571 | Reversible wing insert frog | — | 1996-10-01 |
| 5454514 | Rail anchor assembly | Mark A. Pollock, Duane Christiansen, Dale J. Mertes | 1995-10-03 |
| 5238186 | Guard rail assembly hook | Keith Young | 1993-08-24 |
| 5236125 | Guard rail assembly support block | Keith Young | 1993-08-17 |
| 5176318 | Guard rail assembly | Keith Young | 1993-01-05 |
| 5104041 | Rail brace assembly | — | 1992-04-14 |
| 4938438 | Railroad switch stand | Arthur W. Farrell, Albert V. Fiorenzo, Ray Hoyer | 1990-07-03 |
| 4919033 | Electric violin | Alexander Markov | 1990-04-24 |
| 4824015 | Rail brace | Arthur W. Farrell | 1989-04-25 |
| 4770342 | Adjustable rail brace | A. W. Farrell, Frederick S. Mitchell | 1988-09-13 |
| 4567902 | Tobacco trimmer device | Robert David Gibbs | 1986-02-04 |
| 4488562 | Cigarette making with temperature conditioning | — | 1984-12-18 |