Assignee
HAINING HELI MACHINERY& TECH CO LTD
CN·3 granted patents·4 pending applications·11 citations·filing 2022–2024
Top patents by PatentIndex Score
7 records- 0188US11638483B2Chair backrest mechanism, chair frame and chairHAINING HELI MACHINERY & TECH CO LTD·Filed 2022·Granted May 2, 2023·9 cites·20 claims
- 0278US11839303B2Movable chair device and chair assemblyHAINING HELI MACHINERY & TECH CO LTD·Filed 2022·Granted Dec 12, 2023·2 cites·16 claims
- 0353US12569066B2Seat frame and seat with switchable sitting and lying positionsHAINING HELI MACHINERY & TECH CO LTD·Filed 2024·Granted Mar 10, 2026·0 cites·20 claims
- 0450US2025151907A1Chair frame and chairHAINING HELI MACHINERY& TECH CO LTD·Filed 2024·Application pending·0 cites
- 0550US2025248522A1Mechanical extending mechanism and chairHAINING HELI MACHINERY& TECH CO LTD·Filed 2024·Application pending·0 cites
- 0650US2026069037A1Chair frame and multifunctional chairHAINING HELI MACHINERY& TECH CO LTD·Filed 2024·Application pending·0 cites
- 0747US2024389751A1Chair frame and casual chairHAINING HELI MACHINERY& TECH CO LTD·Filed 2024·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →