Assignee
HYPRO CORP
US·29 granted patents·4 pending applications·962 citations·filing 1986–2003
Top patents by PatentIndex Score
33 records- 0192US6766863B2Fire fighting foam injection system with auto-start featureHYPRO CORP·Filed 2002·Granted Jul 27, 2004·45 cites·5 claims
- 0289US5232052AApparatus and method for controlling the introduction of chemical foamant into a water stream in fire-fighting equipmentHYPRO CORP·Filed 1993·Granted Aug 3, 1993·68 cites·10 claims
- 0389US4830589AVariable stroke positive displacement pumpHYPRO CORP·Filed 1988·Granted May 16, 1989·54 cites·4 claims
- 0487US6886639B2High flow foam system for fire fighting applicationsHYPRO CORP·Filed 2003·Granted May 3, 2005·49 cites·11 claims
- 0587US5174383AApparatus and method for controlling the introduction of chemical foamant into water stream in fire-fighting equipmentHYPRO CORP·Filed 1988·Granted Dec 29, 1992·98 cites·8 claims
- 0685US4824342AChemical injector system for piston pumpsHYPRO CORP·Filed 1988·Granted Apr 25, 1989·45 cites·5 claims
- 0782US5313548ADirect current motor speed controllerHYPRO CORP·Filed 1993·Granted May 17, 1994·45 cites·1 claims
- 0881US6394753B1Flexible impeller removal and installation methodHYPRO CORP·Filed 2001·Granted May 28, 2002·29 cites·11 claims
- 0981USRE35362EApparatus and method for controlling the introduction of chemical foamant into a water stream in fire-fighting equipmentHYPRO CORP·Filed 1995·Granted Oct 29, 1996·46 cites·2 claims
- 1081US5494112ASystem for introduction of concentrated liquid chemical foamant into a water stream for fighting firesHYPRO CORP·Filed 1993·Granted Feb 27, 1996·85 cites·13 claims
- 1179US6085586AFlow meter system with remote displays for each dischargeHYPRO CORP·Filed 1998·Granted Jul 11, 2000·50 cites·2 claims
- 1278US5765644ADual tank control system and method for use in foam introduction fire fighting systemsHYPRO CORP·Filed 1996·Granted Jun 16, 1998·52 cites·9 claims
- 1377US5449280APump including integral reservoirs for permitting dry run of pumpHYPRO CORP·Filed 1994·Granted Sep 12, 1995·32 cites·6 claims
- 1475US6712293B2Nozzle tip for agricultural sprayersHYPRO CORP·Filed 2002·Granted Mar 30, 2004·25 cites·5 claims
- 1574US6557787B2Nozzle for agricultural sprayersHYPRO CORP·Filed 2002·Granted May 6, 2003·24 cites·7 claims
- 1674US5764463ACurrent limiting circuit and electronic fuse for use in foam injection fire fighting systemsHYPRO CORP·Filed 1996·Granted Jun 9, 1998·44 cites·9 claims
- 1770US6116855AFlexible impeller removal systemHYPRO CORP·Filed 1998·Granted Sep 12, 2000·23 cites·2 claims
- 1864US6095776APeristalic rubber impeller pumpHYPRO CORP·Filed 1997·Granted Aug 1, 2000·19 cites·9 claims
- 1963US4732175ASurge suppressorHYPRO CORP·Filed 1987·Granted Mar 22, 1988·27 cites·6 claims
- 2057US5402569AMethod of manufacturing a pump with a modular cam profile linerHYPRO CORP·Filed 1994·Granted Apr 4, 1995·17 cites·11 claims
- 2156US5934173AReciprocating plunger pumpHYPRO CORP·Filed 1997·Granted Aug 10, 1999·18 cites·3 claims
- 2251US6045334AValve disabler for use in high pressure pipe cleaning applicationsHYPRO CORP·Filed 1998·Granted Apr 4, 2000·13 cites·3 claims
- 2345US5911562AHigh pressure fluid delivery system with automatic priming valveHYPRO CORP·Filed 1996·Granted Jun 15, 1999·15 cites·2 claims
- 2445US5074767APositive displacement pump with rotating reciprocating piston and improved lubrication featureHYPRO CORP·Filed 1990·Granted Dec 24, 1991·10 cites·5 claims
- 2544US4721444AFluid pump incorporating pulsation dampener surrounding its shaftHYPRO CORP·Filed 1986·Granted Jan 26, 1988·9 cites·2 claims
- 2643US2004258501A1Anti-vibration mechanism for lock nutsHYPRO CORP·Filed 2003·Application pending·0 cites
- 2739US2003235509A1High aspiration valve design for piston pumps or compressorsHYPRO CORP·Filed 2002·Application pending·0 cites
- 2837US2003206811A1Variable displacement positive displacement pumpHYPRO CORP·Filed 2002·Application pending·0 cites
- 2936US2004219036A1Plastic rotor for pumpsHYPRO CORP·Filed 2003·Application pending·0 cites
- 3033US6203302B1Rubber impeller pumpHYPRO CORP·Filed 1998·Granted Mar 20, 2001·3 cites·13 claims
- 3133US5022831APositive displacement pump with rotating reciprocating pistonHYPRO CORP·Filed 1990·Granted Jun 11, 1991·6 cites·5 claims
- 3230US5775880AValve disabler for use in high pressure pipe cleaning systemsHYPRO CORP·Filed 1996·Granted Jul 7, 1998·5 cites·3 claims
- 3329US6126171ASealing cartridgeHYPRO CORP·Filed 1998·Granted Oct 3, 2000·6 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →