Robert L. Cryderman

Person

Pueblo, CO, US

People

Patents Grantslast 30 patents

Information Patent Grant
Conventional or continuous rolling process
- Patent number 5,666,707
- Issue date Sep 16, 1997
- CF&I Steel, L.P.
- Robert L. Cryderman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Railroad rail and method and system of rolling the same by conventi...
- Patent number 5,507,081
- Issue date Apr 16, 1996
- CF&I Steel, L.P.
- Robert L. Cryderman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Railroad rail and method and system of rolling the same by conventi...
- Patent number 5,472,041
- Issue date Dec 5, 1995
- CF&I Steel, L.P.
- Robert L. Cryderman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Continuous rail production
- Patent number 5,419,387
- Issue date May 30, 1995
- CF&I Steel, L.P.
- Robert L. Cryderman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Continuous rail production
- Patent number 5,195,573
- Issue date Mar 23, 1993
- CF&I Steel Corporation
- Robert L. Cryderman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Unitary one quarter mile long railroad rail free of weld seams
- Patent number 5,018,666
- Issue date May 28, 1991
- CF&I Steel Corporation
- Robert L. Cryderman
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Robert L. Cryderman

Person

Patents Grantslast 30 patents

Conventional or continuous rolling process

Railroad rail and method and system of rolling the same by conventi...

Railroad rail and method and system of rolling the same by conventi...

Continuous rail production

Continuous rail production

Unitary one quarter mile long railroad rail free of weld seams