Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7341226 | Movable point frog switching assembly | Maurizio Biagiotti, Charles Crawford, Miles Metschke | 2008-03-11 |
| 7152830 | Switch machine improvements | John Patrick Dowell, Charles Crawford, Maurizio Biagiotti, Michael Lee Ashton, Edward A. Croteau | 2006-12-26 |
| 7147189 | Non-powered trailed switch detector for railroad track switching equipment | Augustus Brown, Andrew Lawrence Ruggiero, Michael Voth, Brandi Wood | 2006-12-12 |
| 7134632 | Non-powered trailed switch detector for railroad track switching equipment | Augustus Brown, Andrew Lawrence Ruggiero, Michael Voth, Brandi Wood | 2006-11-14 |
| 6041910 | Baggage pusher device and system | Mark J. Avery | 2000-03-28 |
| D413190 | Trolley bumper | Chris Ariss | 1999-08-24 |