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Phillip R. Merrifield

CM Cleveland Track Material: 2 patents #4 of 7Top 60%
PS Progress Rail Services: 2 patents #32 of 125Top 30%
📍 Independence, KY: #30 of 82 inventorsTop 40%
🗺 Kentucky: #2,672 of 11,577 inventorsTop 25%
Overall (All Time): #1,183,764 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9988768 System, method, and apparatus to restrict movement of railway guard bar Brian Weaver 2018-06-05
9932054 Double point derail switch Brian Weaver, Russell R. Hein 2018-04-03
8313041 Rail brace assembly James A. Remington, Karl E. Axthelm 2012-11-20
7641128 Rail brace assembly James A. Remington, Karl E. Axthelm 2010-01-05