Assignee
MARUYAMA MFG CO
JP·67 granted patents·6 pending applications·913 citations·filing 1974–2024
Top patents by PatentIndex Score
73 records- 0193US6575695B1Centrifugal blower and power working machineMARUYAMA MFG CO·Filed 2000·Granted Jun 10, 2003·76 cites·7 claims
- 0290US6596159B1Automatic regeneration valve for water softenerMARUYAMA MFG CO·Filed 2001·Granted Jul 22, 2003·73 cites·5 claims
- 0390US6370729B2Portable power working machineMARUYAMA MFG CO·Filed 2001·Granted Apr 16, 2002·36 cites·10 claims
- 0489USD538824SReciprocating pumpMARUYAMA MFG CO·Filed 2006·Granted Mar 20, 2007·52 cites·1 claims
- 0589USD492759SAir cleanerMARUYAMA MFG CO·Filed 2003·Granted Jul 6, 2004·37 cites·1 claims
- 0688USD591311SReciprocating pumpMARUYAMA MFG CO·Filed 2008·Granted Apr 28, 2009·48 cites·1 claims
- 0786USD496670SReciprocating pumpMARUYAMA MFG CO·Filed 2003·Granted Sep 28, 2004·33 cites·1 claims
- 0883USD362600SBush cutter headMARUYAMA MFG CO·Filed 1994·Granted Sep 26, 1995·24 cites·1 claims
- 0983US4355667AHeddle frameMARUYAMA MFG CO·Filed 1980·Granted Oct 26, 1982·25 cites·4 claims
- 1082USD495342SReciprocating pumpMARUYAMA MFG CO·Filed 2003·Granted Aug 31, 2004·29 cites·1 claims
- 1177US6526624B2Blower tube for air-jet type cleanerMARUYAMA MFG CO·Filed 2001·Granted Mar 4, 2003·15 cites·9 claims
- 1275US5653028ASaw blade machine and trimmerMARUYAMA MFG CO·Filed 1995·Granted Aug 5, 1997·36 cites·3 claims
- 1373US6511286B2Centrifugal blower and portable power working machineMARUYAMA MFG CO·Filed 2001·Granted Jan 28, 2003·19 cites·10 claims
- 1472US10085390B2Backpack type blowing apparatusMARUYAMA MFG CO·Filed 2017·Granted Oct 2, 2018·2 cites·4 claims
- 1572USD356013SHedge trimmerMARUYAMA MFG CO·Filed 1991·Granted Mar 7, 1995·15 cites·1 claims
- 1670US10480427B2Choke valve structureMARUYAMA MFG CO·Filed 2016·Granted Nov 19, 2019·1 cites·20 claims
- 1770US6053091APlunger pumpMARUYAMA MFG CO·Filed 1998·Granted Apr 25, 2000·31 cites·9 claims
- 1868USD815377SBlower nozzle attachmentMARUYAMA MFG CO·Filed 2017·Granted Apr 10, 2018·11 cites·1 claims
- 1968US9932973B2Reciprocating pump with high-pressure sealMARUYAMA MFG CO·Filed 2013·Granted Apr 3, 2018·1 cites·9 claims
- 2068USD533266SBackpack blowerMARUYAMA MFG CO·Filed 2005·Granted Dec 5, 2006·17 cites·1 claims
- 2167USD858582SReciprocating pumpMARUYAMA MFG CO·Filed 2018·Granted Sep 3, 2019·18 cites·1 claims
- 2265USD532897SCover for a blowerMARUYAMA MFG CO·Filed 2005·Granted Nov 28, 2006·15 cites·1 claims
- 2363US7066119B2Two-stroke engineMARUYAMA MFG CO·Filed 2005·Granted Jun 27, 2006·5 cites·7 claims
- 2463US4275772AHeddle frameMARUYAMA MFG CO·Filed 1980·Granted Jun 30, 1981·11 cites·7 claims
- 2562US4307757ASide stay of heddle frameMARUYAMA MFG CO·Filed 1980·Granted Dec 29, 1981·10 cites·3 claims
- 2661US12553530B2Pressure regulating valve with pistonMARUYAMA MFG CO·Filed 2024·Granted Feb 17, 2026·0 cites·20 claims
- 2761USD353382SInternal combustion engineMARUYAMA MFG CO·Filed 1993·Granted Dec 13, 1994·10 cites·1 claims
- 2861USD347772SHedge trimmerMARUYAMA MFG CO·Filed 1991·Granted Jun 14, 1994·10 cites·1 claims
- 2961USD324221SInternal combustion engineMARUYAMA MFG CO·Filed 1989·Granted Feb 25, 1992·9 cites·1 claims
- 3060US6688538B2Irrigation apparatusMARUYAMA MFG CO·Filed 2001·Granted Feb 10, 2004·12 cites·1 claims
- 3160USD349022SPower unit shaft attachment for cutting implementsMARUYAMA MFG CO·Filed 1991·Granted Jul 26, 1994·10 cites·1 claims
- 3259USD1076011SPower sprayerMARUYAMA MFG CO·Filed 2023·Granted May 20, 2025·1 cites·1 claims
- 3359US12247665B2Seal structure with annular packingMARUYAMA MFG CO·Filed 2023·Granted Mar 11, 2025·0 cites·16 claims
- 3459US4875690ASeal device for reciprocating pumpMARUYAMA MFG CO·Filed 1988·Granted Oct 24, 1989·19 cites·15 claims
- 3557US6591793B2Two-cycle engineMARUYAMA MFG CO·Filed 2001·Granted Jul 15, 2003·9 cites·23 claims
- 3656US5402576AMowing apparatusMARUYAMA MFG CO·Filed 1993·Granted Apr 4, 1995·20 cites·11 claims
- 3756US4230159AHeddle frameMARUYAMA MFG CO·Filed 1978·Granted Oct 28, 1980·7 cites·5 claims
- 3855US12012914B2Fuel pressurization deviceMARUYAMA MFG CO·Filed 2023·Granted Jun 18, 2024·0 cites·20 claims
- 3955USD806330SBackpack blowerMARUYAMA MFG CO·Filed 2016·Granted Dec 26, 2017·7 cites·1 claims
- 4055US6173683B1Two-stroke cycle engineMARUYAMA MFG CO·Filed 1999·Granted Jan 16, 2001·15 cites·6 claims
- 4153US4506707AHeddle frameMARUYAMA MFG CO·Filed 1983·Granted Mar 26, 1985·7 cites·8 claims
- 4253US2009257897A1Reciprocating pumpMARUYAMA MFG CO·Filed 2009·Application pending·0 cites
- 4352USD1009078SInternal combustion engineMARUYAMA MFG CO·Filed 2021·Granted Dec 26, 2023·2 cites·1 claims
- 4452US6591792B2Two-cycle engineMARUYAMA MFG CO·Filed 2001·Granted Jul 15, 2003·7 cites·30 claims
- 4551USD488487SMachine to spray chemicalsMARUYAMA MFG CO·Filed 2003·Granted Apr 13, 2004·9 cites·1 claims
- 4651US5517931AIntermittently discharging method and reciprocating pumpMARUYAMA MFG CO·Filed 1994·Granted May 21, 1996·18 cites·1 claims
- 4751US2010000053A1Portable blower gripMARUYAMA MFG CO·Filed 2009·Application pending·0 cites
- 4850US12276272B2Diaphragm pumpMARUYAMA MFG CO·Filed 2023·Granted Apr 15, 2025·0 cites·20 claims
- 4949US2007237651A1Reciprocating pump apparatusMARUYAMA MFG CO·Filed 2007·Application pending·0 cites
- 5049US2024141889A1Seal structure for reciprocating pump with cylindrical collar portionMARUYAMA MFG CO·Filed 2023·Application pending·0 cites
Showing the top 50 of 73 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when MARUYAMA MFG CO files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →