Roy Nelson

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Lakeville, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Rail road track lubrication apparatus and method
- Patent number 10,421,469
- Issue date Sep 24, 2019
- RBL, INC.
- Roy L Nelson
- B61 - RAILWAYS
Information Patent Grant
Rail road track lubrication apparatus and method
- Patent number 9,561,809
- Issue date Feb 7, 2017
- RBL, INC.
- Roy L Nelson
- B61 - RAILWAYS
Information Patent Grant
Rail lubricating device
- Patent number 5,236,063
- Issue date Aug 17, 1993
- Robolube Industries, Inc.
- Roy Nelson
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Rail road track lubrication apparatus and method
- Publication number 20170137044
- Publication date May 18, 2017
- RBL, Inc.
- Roy L. Nelson
- B61 - RAILWAYS
Information Patent Application
Rail road track lubrication apparatus and method
- Publication number 20150034422
- Publication date Feb 5, 2015
- RBL, Inc.
- Roy L. Nelson
- B61 - RAILWAYS