MARUYAMA MFG. CO., INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 864
 
  
 
F04B POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS 458
 
  
 
A47L DOMESTIC WASHING OR CLEANING 357
 
  
 
E01H STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; CLEANING LAND; DISPERSING FOG IN GENERAL 218
 
  
 
F02M SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF 281
 
  
 
1502 PUMPS AND COMPRESSORS215
 
  
 
1505 WASHING, CLEANING AND DRYING MACHINES232
 
  
 
A01G HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS, OR SEAWEED; FORESTRY; WATERING 131
 
  
 
A45F TRAVELLING OR CAMP EQUIPMENT; SACKS OR PACKS CARRIED ON THE BODY 116
 
  
 
B27B SAWS; COMPONENTS OR ACCESSORIES THEREFOR 124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D806330 Backpack blowerFeb 17, 16Dec 26, 17[1505]
D798515 Nozzle for blowerFeb 17, 16Sep 26, 17[1505]
9015901 Portable air blowerAug 24, 12Apr 28, 15[E01H, A47L, A01G]
8833624 Backpack type working machineSep 13, 11Sep 16, 14[A45F]
8549761 Chain sawJan 27, 11Oct 08, 13[B27B, B23D]
8366409 Reciprocating pumpJun 28, 10Feb 05, 13[F04B]
8246319 Reciprocating pumpNov 12, 08Aug 21, 12[F04B]
8215269 Two-stroke engineDec 02, 09Jul 10, 12[F02B]
8123505 Reciprocating pump with sealing collar arrangementMar 26, 07Feb 28, 12[F16J]
D612470 Power atomizerJan 14, 09Mar 23, 10[2304]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0239,933 TWO-CYCLE ENGINEAbandonedMar 13, 13Sep 19, 13[F02B]
2010/0000,053 PORTABLE BLOWER GRIPAbandonedJul 01, 09Jan 07, 10[B25G]
2009/0257,897 RECIPROCATING PUMPAbandonedApr 06, 09Oct 15, 09[F04B]
2007/0237,651 Reciprocating pump apparatusAbandonedMar 28, 07Oct 11, 07[F04B]
2006/0222,498 Impeller for centrifugal blowerAbandonedApr 05, 06Oct 05, 06[B64C]
6688538 Irrigation apparatusExpiredMar 30, 01Feb 10, 04[A62C]
6679216 Starters for internal combustion engineExpiredJan 30, 02Jan 20, 04[F02N]
6575695 Centrifugal blower and power working machineExpiredNov 07, 00Jun 10, 03[A47L, F04D]
6526624 Blower tube for air-jet type cleanerExpiredAug 09, 01Mar 04, 03[A47L]
6511286 Centrifugal blower and portable power working machineExpiredFeb 26, 01Jan 28, 03[F04D]
6173683 Two-stroke cycle engineExpiredSep 30, 99Jan 16, 01[F02B]
5653028 Saw blade machine and trimmerExpiredDec 18, 95Aug 05, 97[B27B]
5641025 Aerator for turfExpiredApr 19, 95Jun 24, 97[A01B]
5517931 Intermittently discharging method and reciprocating pumpExpiredSep 27, 94May 21, 96[F16H]
D362600 Bush cutter headExpiredJan 19, 94Sep 26, 95[]
5402576 Mowing apparatusExpiredSep 08, 93Apr 04, 95[B26B]
D356013 Hedge trimmerExpiredDec 03, 91Mar 07, 95[]
D354495 Reciprocating pumpExpiredApr 07, 93Jan 17, 95[]
D353382 Internal combustion engineExpiredOct 15, 93Dec 13, 94[]
D353084 Bush cutterExpiredMar 26, 93Dec 06, 94[]

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