SD

Sadao Douchi

NS Nippon Steel: 3 patents #48 of 435Top 15%
VF Vallourec Oil And Gas France: 3 patents #6 of 22Top 30%
Overall (2022): #63,968 of 548,613Top 15%
3
Patents 2022

Issued Patents 2022

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
11506311 Threaded connection for steel pipe Yousuke Oku 2022-11-22
11473373 Threaded connection for tubular component Xavier MENCAGLIA, Corey Dufrene, Masaaki Sugino 2022-10-18
11391097 Threaded connection for steel pipe Yousuke Oku 2022-07-19