Class B61D : BODY DETAILS OR KINDS OF RAILWAY VEHICLES
Subclass 3/06: Wagons or vans (tank wagons B61D 5/00; hopper wagons B61D 7/00; tipping wagons B61D 9/00; mine cars B61D 11/00; vehicles adapted for animal transportation B60P 3/04) Flat-bottomed cars convertible into hoppers
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12168466 | Open top gondola railcars | Sep 16, 21 | Dec 17, 24 | Gunderson LLC |
| 11970192 | Railroad energy delivery system | Sep 30, 22 | Apr 30, 24 | SunTrain, Inc. |
| 11084508 | Longitudinal sliding gate for hopper car | Dec 11, 18 | Aug 10, 21 | Trinity Industries, Inc. |
| 8342589 | Convertible trailer | Nov 18, 11 | Jan 01, 13 | Tital Trailers, Inc. |
| 8282148 | Convertible trailer | Jun 27, 11 | Oct 09, 12 | TITAN TRAILERS INC. |
| 7967357 | Convertible trailer | Dec 30, 08 | Jun 28, 11 | TITAN TRAILERS INC. |
| 7549380 | Hinge and support system for an intermediate deck in a trailer | Oct 29, 04 | Jun 23, 09 | UNITED PARCEL SERVICE OF AMERICA, INC. |
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