Inventor · disambiguated record
Phillip R. Merrifield
Also filed as: MERRIFIELD PHILLIP · MERRIFIELD PHILLIP R
4 granted patents·2 pending applications·10 citations·filing 2006–2016
67Inventor score
Top patents by PatentIndex Score
6 records- 0186US8313041B2Rail brace assemblyREMINGTON JAMES A·Filed 2011·Granted Nov 20, 2012·4 cites·20 claims
- 0280US7641128B2Rail brace assemblyCLEVELAND TRACK MATERIAL INC·Filed 2006·Granted Jan 5, 2010·6 cites·16 claims
- 0354US2013134231A1Rail brace assemblyCLEVELAND TRACK MATERIAL INC·Filed 2012·Application pending·0 cites
- 0449US2010108773A1Rail brace assemblyCLEVELAND TRACK MATERIAL INC·Filed 2010·Application pending·0 cites
- 0547US9932054B2Double point derail switchPROGRESS RAIL SERVICES CORP·Filed 2016·Granted Apr 3, 2018·0 cites·19 claims
- 0635US9988768B2System, method, and apparatus to restrict movement of railway guard barPROGRESS RAIL SERVICES CORP·Filed 2016·Granted Jun 5, 2018·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →