Beijing
China
8
2026-05-14
The entities that hold a legal rights for patent applications filed by inventor DU Fei:
Fei DU from Beijing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
HIGH-COERCIVITY AND HIGH-REMANENCE NdFeB MAGNET AND PREPARATION METHOD
#2 | 2026-04-16NdFeB MAGNET AND PREPARATION METHOD
#3 | 2025-10-30R-T-B MAGNET AND PREPARATION METHOD
#4 | 2025-09-11Ce-CONTAINING NEODYMIUM-IRON-BORON MAGNET AND PREPARATION METHOD AND APPLICATION THEREOF
#5 | 2024-08-15R-T-B MAGNET AND PREPARATION METHOD THEREOF
#6 | 2022-08-11Fine grain rare earth alloy cast strip, preparation method thereof, and a rotary cooling roll device
#7 | 2021-10-28Rare earth magnet and preparation method thereof
#8 | 2019-10-31FINE GRAIN RARE EARTH ALLOY CAST STRIP, PREPARATION METHOD THEREOF, AND A ROTARY COOLING ROLL DEVICE
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