Inventor · disambiguated record
Kwon Sik Hwang
Also filed as: HWANG KWON SIK
4 granted patents·2 pending applications·4 citations·filing 2019–2023
60Inventor score
Files withHS R & A CO LTD6
Top patents by PatentIndex Score
6 records- 0191US11840124B2Piping system for air conditionerHS R & A CO LTD·Filed 2021·Granted Dec 12, 2023·3 cites·10 claims
- 0285US12392429B2Piping system comprising pipe blockHS R & A CO LTD·Filed 2023·Granted Aug 19, 2025·1 cites·2 claims
- 0361US2025172346A1Plate-type heat exchangerHS R & A CO LTD·Filed 2023·Application pending·0 cites
- 0457US11002387B2Brake hoseHS R & A CO LTD·Filed 2019·Granted May 11, 2021·0 cites·5 claims
- 0552US2022381356A1Check valve, refrigerant piping system having same, and assembling method thereofHS R & A CO LTD·Filed 2022·Application pending·0 cites
- 0649US11364773B2Plate-type heat exchanger and air conditioning system for vehicle having the sameHS R & A CO LTD·Filed 2020·Granted Jun 21, 2022·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →