Gregory Ryan Lehnhoff

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Monument, CO, US

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Patents Grantslast 30 patents

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

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
Copper Containing Rail Steel
- Publication number 20170349986
- Publication date Dec 7, 2017
- Colorado School Of Mines
- Jarred FROMAN
- 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