Inventor · disambiguated record
Sadao Douchi
Also filed as: DOUCHI SADAO
6 granted patents·1 pending application·6 citations·filing 2016–2020
70Inventor score
Top patents by PatentIndex Score
7 records- 0176US10495241B2Threaded joint for steel pipeNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Dec 3, 2019·3 cites·1 claims
- 0274US11719365B2Threaded connection for steel pipeNIPPON STEEL CORP·Filed 2020·Granted Aug 8, 2023·1 cites·12 claims
- 0369US11473373B2Threaded connection for tubular componentVALLOUREC OIL & GAS FRANCE·Filed 2017·Granted Oct 18, 2022·2 cites·20 claims
- 0451US11391097B2Threaded connection for steel pipeNIPPON STEEL CORP·Filed 2019·Granted Jul 19, 2022·0 cites·4 claims
- 0549US11506311B2Threaded connection for steel pipeNIPPON STEEL CORP·Filed 2019·Granted Nov 22, 2022·0 cites·4 claims
- 0645US10883319B2Threaded connection for steel pipeNIPPON STEEL & SUMITOMO METAL CORP·Filed 2016·Granted Jan 5, 2021·0 cites·6 claims
- 0740US2019093799A1Threaded Connection for Steel PipeNIPPON STEEL & SUMITOMO METAL CORP·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →