Jude O. Igwemezie

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Markham, CA

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Patents Grantslast 30 patents

Information Patent Grant
Rail retaining device
- Patent number 6,702,192
- Issue date Mar 9, 2004
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Rail fastening devices
- Patent number 6,431,463
- Issue date Aug 13, 2002
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Rail retaining device
- Patent number 6,325,300
- Issue date Dec 4, 2001
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Rail fastening devices
- Patent number 6,305,613
- Issue date Oct 23, 2001
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Rail tie plate clips and shoulders
- Patent number 5,782,406
- Issue date Jul 21, 1998
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Attenuating pad for concrete railway ties
- Patent number 5,335,850
- Issue date Aug 9, 1994
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES

Patents Applicationslast 30 patents

Information Patent Application
Rail fastening devices
- Publication number 20020011526
- Publication date Jan 31, 2002
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
Rail retaining device
- Publication number 20020000475
- Publication date Jan 3, 2002
- Jude O. Igwemezie
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES