MUMBAI, India, Sept. 12 -- Intellectual Property India has published a patent application (202517081167 A) filed by Nippon Steel Corporation; and Vallourec Oil And Gas France, Tokyo, on Aug. 27, for 'threaded joint for steel pipes.'
Inventor(s) include Inose, Keita; Ogawa, Masahiro; Morishige, Yuya; Kurio, Satoshi; and Maruta, Satoshi.
The application for the patent was published on Sept. 12, under issue no. 37/2025.
According to the abstract released by the Intellectual Property India: "This threaded joint comprises a pin (10) and a box (20). The pin (10) and box (20) fastened together comprise a threaded portion (101), an interior seal portion (102), and an exterior seal portion (103). A value Lth of the ratio of the amount of interfer...