Joseph Victor Kristan

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Pueblo, CO, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for joining steel rails with controlled weld heat input
- Patent number 10,851,436
- Issue date Dec 1, 2020
- CF&I STEEL L.P.
- Gregory Ryan Lehnhoff
- C21 - METALLURGY OF IRON
Information Patent Grant
High carbon steel rail with enhanced ductility
- Patent number 9,670,570
- Issue date Jun 6, 2017
- EVRAZ INC. NA CANADA
- Joseph Victor Kristan
- C21 - METALLURGY OF IRON
Information Patent Grant
Method and apparatus for treatment of a rail weld
- Patent number 9,334,546
- Issue date May 10, 2016
- EVRAZ INC. NA CANADA
- Joseph Victor Kristan
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR JOINING STEEL RAILS WITH CONTROLLED WELD HEAT INPUT
- Publication number 20190100822
- Publication date Apr 4, 2019
- CF&I Steel L.P. D/B/A EVRAZ Rocky Mountain Steel
- Gregory Ryan Lehnhoff
- C21 - METALLURGY OF IRON
Information Patent Application
HIGH CARBON STEEL RAIL WITH ENHANCED DUCTILITY
- Publication number 20150299832
- Publication date Oct 22, 2015
- EVRAZ INC. NA CANADA
- Joseph Victor Kristan
- C21 - METALLURGY OF IRON
Information Patent Application
METHOD AND APPARATUS FOR TREATMENT OF A RAIL WELD
- Publication number 20130133784
- Publication date May 30, 2013
- CF&I STEEL L.P., D/B/A EVRAZ ROCKY MOUNTAIN STEEL
- Joseph Victor Kristan
- C21 - METALLURGY OF IRON