-
-
-
Bridge composite structural panel
-
Patent number 8,966,692
-
Issue date Mar 3, 2015
-
Crawford Dewar
-
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
-
-
-
High shear strength pultrusion
-
Patent number 5,795,424
-
Issue date Aug 18, 1998
-
Ebert Composites Corporation
-
David W. Johnson
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
-
-
Portable bridge system
-
Patent number 5,603,134
-
Issue date Feb 18, 1997
-
Coastal Lumber Company
-
Craig R. Whipkey
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
High shear strength pultrusion
-
Patent number 5,597,629
-
Issue date Jan 28, 1997
-
Ebert Composites Corporation
-
David W. Johnson
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
-
-
-
-
Pole structure
-
Patent number 5,222,344
-
Issue date Jun 29, 1993
-
David W. Johnson
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
-
-
Interlocking support structures
-
Patent number 5,024,036
-
Issue date Jun 18, 1991
-
David W. Johnson
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
Support stand
-
Patent number 4,991,726
-
Issue date Feb 12, 1991
-
David W. Johnson
-
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
-
-
-
-
Integral truss-supported deck
-
Patent number 4,068,442
-
Issue date Jan 17, 1978
-
Trus Joist Corporation
-
Arthur L. Troutner
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2991857
-
Patent number 2,991,857
-
Issue date Jul 11, 1961
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2867854
-
Patent number 2,867,854
-
Issue date Jan 13, 1959
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2524911
-
Patent number 2,524,911
-
Issue date Oct 10, 1950
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2517286
-
Patent number 2,517,286
-
Issue date Aug 1, 1950
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2380060
-
Patent number 2,380,060
-
Issue date Jul 10, 1945
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2333327
-
Patent number 2,333,327
-
Issue date Nov 2, 1943
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
2330146
-
Patent number 2,330,146
-
Issue date Sep 21, 1943
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES