Michael Lumpkin

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Richmond, VA, US

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Patents Grantslast 30 patents

Information Patent Grant
Insert and wear ring for a railway roller bearing
- Patent number 11,220,279
- Issue date Jan 11, 2022
- Amsted Rail Company, Inc.
- Michael Lumpkin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Insert and wear ring for a railway roller bearing
- Patent number 11,155,283
- Issue date Oct 26, 2021
- Amsted Rail Company, Inc.
- Michael Lumpkin
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
INSERT AND WEAR RING FOR A RAILWAY ROLLER BEARING
- Publication number 20200017129
- Publication date Jan 16, 2020
- AMSTED RAIL COMPANY, INC.
- Michael Lumpkin
- B61 - RAILWAYS