Assignee
MARUKO KEIHOKI KK
JP·4 granted patents·96 citations·filing 1981–2021
Top patents by PatentIndex Score
4 records- 0184US4728260ADirection-selectable sending-out pumpMARUKO KEIHOKI KK·Filed 1987·Granted Mar 1, 1988·48 cites·9 claims
- 0270US4486742AMultifrequency piezoelectric horn systemMARUKO KEIHOKI KK·Filed 1981·Granted Dec 4, 1984·30 cites·10 claims
- 0361US4540975AElectric hornsMARUKO KEIHOKI KK·Filed 1982·Granted Sep 10, 1985·18 cites·4 claims
- 0446US11988166B2Rotary heat pumpMARUKO KEIHOKI KK·Filed 2021·Granted May 21, 2024·0 cites·4 claims
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