| 11649648 |
Enhanced safety cage apparatus for work areas on top of rolling stock such as rail tank cars |
Eric W. Anderson, James Quinn Sawinski, Jr. |
2023-05-16 |
| 10457506 |
Enhanced deployment of safety cage apparatus for tanks on vehicles |
John Wesley Layton, Jr., Morris H Cusaac |
2019-10-29 |
| 9273475 |
Cement industry gangway |
Adam Lewis DuBose |
2016-03-01 |
| 9228364 |
Adjustable work surface for large irregularly shaped objects |
Adam Lewis DuBose, Rodrick Lafaye Williamson |
2016-01-05 |
| 8813912 |
Pivot block connection |
Sandy William Tyner, Ellie H. MacDonald |
2014-08-26 |
| 8745799 |
Fall protection cage with adjustable outboard upright |
Allyn Thomasson, Sandy William Tyner, Ellie H. MacDonald |
2014-06-10 |
| 8746403 |
Mobile bulk carrier/access/fall protection system |
Sandy William Tyner |
2014-06-10 |
| 8656556 |
Foot lock roller assembly |
— |
2014-02-25 |
| 8499889 |
Adjustable work surface for large irregularly shaped objects |
Adam Lewis DuBose, Rodrick Lafaye Williamson |
2013-08-06 |
| 8479882 |
Cement industry gangway |
Adam Lewis DuBose |
2013-07-09 |
| 8403109 |
Tracking gate for extended gangway |
— |
2013-03-26 |
| 8051951 |
Retractable access platform |
Ellie H. MacDonald |
2011-11-08 |
| 8015647 |
Extended safety cage for retractable gangway |
— |
2011-09-13 |
| 7832525 |
Access platform for flatbeds |
Ellie H. MacDonald, James A. Ackerman |
2010-11-16 |
| 7802652 |
Servicing station for tractor trailer trucks |
Ellie H. MacDonald, James A. Ackerman |
2010-09-28 |
| 7798344 |
Tarping system |
Anthony J. Cook |
2010-09-21 |
| 6390152 |
Modular bulk material handling station |
John K. Donovan, Eugene R. Brown |
2002-05-21 |
| 5392878 |
Bulk material load vehicle access system |
Bruce A. Pech |
1995-02-28 |
| 5042612 |
Bulk material load vehicle access system |
Bruce A. Pech |
1991-08-27 |
| 4679657 |
Mobile tank vehicle access system |
Ellie H. MacDonald |
1987-07-14 |