Inventor · disambiguated record
Junqing Chai
Also filed as: CHAI JUNQING
2 granted patents·1 pending application·4 citations·filing 2021–2022
39Inventor score
Files withSICHUAN HONGHUA PET EQUIPMENT3
Top patents by PatentIndex Score
3 records- 0187US11286731B1Pipe racking systemSICHUAN HONGHUA PET EQUIPMENT·Filed 2021·Granted Mar 29, 2022·4 cites·20 claims
- 0240US2024183344A1Efficient five-cylinder drilling pump system, solids control system and drilling rigSICHUAN HONGHUA PET EQUIPMENT·Filed 2022·Application pending·0 cites
- 0333US11603720B2Methods for tripping a drilling rig or a workover rigSICHUAN HONGHUA PET EQUIPMENT·Filed 2021·Granted Mar 14, 2023·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →