Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10214224 | Rail road hopper car | James W. Forbes, Tomasz Bis, William R. Davis | 2019-02-26 |
| 9272717 | Rail road hopper car ridge fittings | James W. Forbes, Tomas Bis, William R. Davis | 2016-03-01 |
| 8622004 | Rail road hopper car ridge fittings | James W. Forbes, Tomasz Bis, William R. Davis | 2014-01-07 |
| 8230792 | Well car with cross member | — | 2012-07-31 |
| 8065964 | Rail road hopper car ridge fittings | James W. Forbes, Tomasz Bis, William R. Davis | 2011-11-29 |
| 8047140 | Rail road hopper car structure | James W. Forbes, Tomasz Bis, William R. Davis | 2011-11-01 |
| 7866267 | Well car with cross member | — | 2011-01-11 |
| 7703397 | Rail road hopper car fittings and method of operation | James W. Forbes, Tomas Bis, William R. Davis | 2010-04-27 |
| 7497171 | Well car with cross member | — | 2009-03-03 |
| 7334528 | Well car with cross member | — | 2008-02-26 |
| RE39777 | Dropped deck center beam rail road car structure | James W. Forbes | 2007-08-21 |
| 7025003 | Dropped deck center beam rail road car with shallow center sill | David Keats | 2006-04-11 |
| 6920829 | Dropped deck center beam rail road car | James W. Forbes, Alistair Wilson | 2005-07-26 |
| 6877226 | Well car with cross member and method | — | 2005-04-12 |
| 6505564 | Well car with cross member | — | 2003-01-14 |
| 6446561 | Autorack railcar structure | — | 2002-09-10 |
| 6205932 | Autorack railcar structure | — | 2001-03-27 |
| 6138579 | Autorack railcar adjustable decking structure and method | — | 2000-10-31 |
| 4802420 | Centre beam railroad car | Ronald S. Butcher | 1989-02-07 |
| 4784548 | Double-stacked freight car | Ronald S. Butcher | 1988-11-15 |