Inventor · disambiguated record
Masanao Seo
Also filed as: SEO MASANAO
4 granted patents·7 citations·filing 2011–2013
63Inventor score
Top patents by PatentIndex Score
4 records- 0188US9783876B2Stainless steel for oil wells and stainless steel pipe for oil wellsNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Oct 10, 2017·5 cites·15 claims
- 0279US10407758B2Steel for oil country tubular goods and method of producing the sameNIPPON STEEL & SUMITOMO METAL CORP·Filed 2013·Granted Sep 10, 2019·2 cites·5 claims
- 0346US9777352B2Oil-well steel pipe having excellent sulfide stress cracking resistanceSOMA ATSUSHI·Filed 2012·Granted Oct 3, 2017·0 cites·5 claims
- 0435US9267186B2Method for quenching steel pipe and method for producing steel pipe using the sameSEO MASANAO·Filed 2011·Granted Feb 23, 2016·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →