- 
                
                
                    
                        Hopper car double doors
                                - 
                                    Patent number 11,731,668
                                
- 
                                    Issue date Aug 22, 2023
                                
 
                                - 
                                         Trinity Rail Group, LLC Trinity Rail Group, LLC
- 
                                         Lee A. Reitz Lee A. Reitz
 
                                - 
                                         E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
 
 
- 
                
                
            
- 
                
                
                    
                        Hopper car double doors
                                - 
                                    Patent number 10,875,548
                                
- 
                                    Issue date Dec 29, 2020
                                
 
                                - 
                                         Trinity Rail Group, LLC Trinity Rail Group, LLC
- 
                                         Lee A. Reitz Lee A. Reitz
 
                                - 
                                         E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
 
 
- 
                
                
            
- 
                
                
            
- 
                
                
                    
                        3123017
                                - 
                                    Patent number 3,123,017
                                
- 
                                    Issue date Mar 3, 1964
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        3050320
                                - 
                                    Patent number 3,050,320
                                
- 
                                    Issue date Aug 21, 1962
                                
 
                                - 
                                         B60 - VEHICLES IN GENERAL B60 - VEHICLES IN GENERAL
 
 
- 
                
                
                    
                        2926962
                                - 
                                    Patent number 2,926,962
                                
- 
                                    Issue date Mar 1, 1960
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2926963
                                - 
                                    Patent number 2,926,963
                                
- 
                                    Issue date Mar 1, 1960
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2684642
                                - 
                                    Patent number 2,684,642
                                
- 
                                    Issue date Jul 27, 1954
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2630767
                                - 
                                    Patent number 2,630,767
                                
- 
                                    Issue date Mar 10, 1953
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2409856
                                - 
                                    Patent number 2,409,856
                                
- 
                                    Issue date Oct 22, 1946
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2373538
                                - 
                                    Patent number 2,373,538
                                
- 
                                    Issue date Apr 10, 1945
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2167362
                                - 
                                    Patent number 2,167,362
                                
- 
                                    Issue date Jul 25, 1939
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2152885
                                - 
                                    Patent number 2,152,885
                                
- 
                                    Issue date Apr 4, 1939
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2150418
                                - 
                                    Patent number 2,150,418
                                
- 
                                    Issue date Mar 14, 1939
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2081999
                                - 
                                    Patent number 2,081,999
                                
- 
                                    Issue date Jun 1, 1937
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        2042151
                                - 
                                    Patent number 2,042,151
                                
- 
                                    Issue date May 26, 1936
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1977308
                                - 
                                    Patent number 1,977,308
                                
- 
                                    Issue date Oct 16, 1934
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1853673
                                - 
                                    Patent number 1,853,673
                                
- 
                                    Issue date Apr 12, 1932
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1768728
                                - 
                                    Patent number 1,768,728
                                
- 
                                    Issue date Jul 1, 1930
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1710889
                                - 
                                    Patent number 1,710,889
                                
- 
                                    Issue date Apr 30, 1929
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1706607
                                - 
                                    Patent number 1,706,607
                                
- 
                                    Issue date Mar 26, 1929
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1706353
                                - 
                                    Patent number 1,706,353
                                
- 
                                    Issue date Mar 19, 1929
                                
 
                                - 
                                         B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
 
 
- 
                
                
                    
                        1643013
                                - 
                                    Patent number 1,643,013
                                
- 
                                    Issue date Sep 20, 1927
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1635251
                                - 
                                    Patent number 1,635,251
                                
- 
                                    Issue date Jul 12, 1927
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1618811
                                - 
                                    Patent number 1,618,811
                                
- 
                                    Issue date Feb 22, 1927
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1615793
                                - 
                                    Patent number 1,615,793
                                
- 
                                    Issue date Jan 25, 1927
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1605944
                                - 
                                    Patent number 1,605,944
                                
- 
                                    Issue date Nov 9, 1926
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS
 
 
- 
                
                
                    
                        1563553
                                - 
                                    Patent number 1,563,553
                                
- 
                                    Issue date Dec 1, 1925
                                
 
                                - 
                                         B61 - RAILWAYS B61 - RAILWAYS