-
Durable railway tie
-
Patent number 10,781,557
-
Issue date Sep 22, 2020
-
The Regents of the University of Michigan
-
Victor C. Li
-
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
-
Composite railway sleeper
-
Patent number 10,590,610
-
Issue date Mar 17, 2020
-
GREENRAIL GROUP S.R.L.
-
Giovanni Maria De Lisi
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
-
-
-
-
-
-
-
-
Structural members
-
Patent number 5,573,348
-
Issue date Nov 12, 1996
-
J. P. Pat Morgan
-
B28 - WORKING CEMENT, CLAY, OR STONE
-
-
Concrete cross sleeper system
-
Patent number 4,802,623
-
Issue date Feb 7, 1989
-
Stahlwerke Peine-Salzgitter A.G.
-
Gunter Fasterding
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
-
-
-
Composite railroad tie
-
Patent number 4,034,913
-
Issue date Jul 12, 1977
-
David K. Hooper
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
3863329
-
Patent number 3,863,329
-
Issue date Feb 4, 1975
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
3834620
-
Patent number 3,834,620
-
Issue date Sep 10, 1974
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
3739981
-
Patent number 3,739,981
-
Issue date Jun 19, 1973
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
3664584
-
Patent number 3,664,584
-
Issue date May 23, 1972
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2556622
-
Patent number 2,556,622
-
Issue date Jun 12, 1951
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2551500
-
Patent number 2,551,500
-
Issue date May 1, 1951
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2520754
-
Patent number 2,520,754
-
Issue date Aug 29, 1950
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2466283
-
Patent number 2,466,283
-
Issue date Apr 5, 1949
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2272218
-
Patent number 2,272,218
-
Issue date Feb 10, 1942
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2220533
-
Patent number 2,220,533
-
Issue date Nov 5, 1940
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2035933
-
Patent number 2,035,933
-
Issue date Mar 31, 1936
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
1888287
-
Patent number 1,888,287
-
Issue date Nov 22, 1932
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
1861961
-
Patent number 1,861,961
-
Issue date Jun 7, 1932
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES