| 6955100 |
Method and arrangement for inspection and requalification of vehicles used for transporting commodities and/or hazardous materials |
Timothy P. Donahue, Ade O. Audifferen |
2005-10-18 |
| 6832183 |
Method and database arrangement for inspection and requalification of vehicles used for transporting commodities and/or hazardous materials |
Timothy P. Donahue, Arthur J. Kozlowski |
2004-12-14 |
| 6769162 |
Railcar maintenance process |
David J. Barich, Timothy P. Donahue |
2004-08-03 |
| 6597973 |
Method and arrangement for inspection and requalification of lined vehicles used for transporting commodities and/or hazardous materials |
Timothy P. Donahue, Michael Yeung |
2003-07-22 |
| 6453823 |
Railcar maintenance facility |
David J. Barich, Timothy P. Donahue |
2002-09-24 |
| 6446912 |
Railcar maintenance management method |
David J. Barich, Timothy P. Donahue |
2002-09-10 |
| 6437705 |
Railcar maintenance management system |
David J. Barich, Timothy P. Donahue |
2002-08-20 |
