Inventor · disambiguated record
Chang Ching Feng
Also filed as: FENG CHANG · FENG CHANG CHING
2 granted patents·1 pending application·7 citations·filing 2007–2020
44Inventor score
Top patents by PatentIndex Score
3 records- 0160US7493842B2Band saw quickly changing device for a band saw machineKING SAW MACHINERY LTD·Filed 2007·Granted Feb 24, 2009·7 cites·4 claims
- 0241US2023339436A1Abrasive block mounting and dismounting assembly, mounting and dismounting method, wheel tread cleaner and railway vehicleCRRC CHANGZHOU TECH MARK IND CO LTD·Filed 2020·Application pending·0 cites
- 0337US12454251B2End cover assembly, air cylinder, tread cleaner and railway vehicleCRRC CHANGZHOU TECH MARK IND CO LTD·Filed 2020·Granted Oct 28, 2025·0 cites·22 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →