ChongQing
China
5
2026-02-26
The entities that hold a legal rights for patent applications filed by inventor Wan Jun:
Jun Wan from ChongQing, CN has applied for patents for these inventions. The list has both pending applications and granted patents:
POWER HEAD OF DIRECTIONAL DRILL
#2 | 2025-10-16ROTATION ANGLE CONTROL AND BRAKING DEVICE FOR POWER HEAD OF DIRECTIONAL DRILL
#3 | 2025-10-02COAL MINE INTELLIGENT DIRECTIONAL DRILL AND DRILLING METHOD THEREFOR
#4 | 2025-10-02COAL MINE AUTOMATIC DIRECTIONAL DRILL
#5 | 2025-10-02COMBINED DRILLING SYSTEM WITH DOUBLE ROTARY DRIVING DEVICES AND CONTROL METHOD THEREFOR
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