Assignee
ALLEN ENG CORP
US·65 granted patents·1,870 citations·filing 1979–2014
Top patents by PatentIndex Score
65 records- 0195US6089787ATransformable two-person floating screed with automatic grade controlALLEN ENG CORP·Filed 1998·Granted Jul 18, 2000·102 cites·2 claims
- 0295US5352063APolymer concrete paving machineALLEN ENG CORP·Filed 1992·Granted Oct 4, 1994·103 cites·27 claims
- 0393US5328295ATorsional automatic grade control system for concrete finishingALLEN ENG CORP·Filed 1993·Granted Jul 12, 1994·83 cites·19 claims
- 0492US5288166ALaser operated automatic grade control system for concrete finishingALLEN ENG CORP·Filed 1992·Granted Feb 22, 1994·101 cites·16 claims
- 0591US4702640ARotating tube concrete finisherALLEN ENG CORP·Filed 1986·Granted Oct 27, 1987·66 cites·16 claims
- 0691US4375351ATriangular truss concrete screed having a blade extension bracketALLEN ENG CORP·Filed 1981·Granted Mar 1, 1983·43 cites·8 claims
- 0789US4466757AVibratory screed including a spreading device for leveling and distributing plastic concrete in front of the screedALLEN ENG CORP·Filed 1983·Granted Aug 21, 1984·51 cites·52 claims
- 0888US5108220ALight weight, fast steering riding trowelALLEN ENG CORP·Filed 1990·Granted Apr 28, 1992·80 cites·35 claims
- 0988US4314773AHigh density concrete placerALLEN ENG CORP·Filed 1979·Granted Feb 9, 1982·43 cites·53 claims
- 1085US6019433AConcrete saw with stabilized carriage and blade controlALLEN ENG CORP·Filed 1997·Granted Feb 1, 2000·56 cites·11 claims
- 1182US6857815B2Acoustic impedance matched concrete finishingALLEN ENG CORP·Filed 2003·Granted Feb 22, 2005·22 cites·12 claims
- 1280US7316523B1Acoustically matched method and apparatus for screeding concreteALLEN ENG CORP·Filed 2005·Granted Jan 8, 2008·9 cites·6 claims
- 1380USD465897SPower trowel dollyALLEN ENG CORP·Filed 2001·Granted Nov 19, 2002·25 cites·1 claims
- 1480US4659054ALightweight concrete form having a detachable equipment railALLEN ENG CORP·Filed 1984·Granted Apr 21, 1987·36 cites·20 claims
- 1579US7114876B1Acoustically matched concrete finishing pansALLEN ENG CORP·Filed 2004·Granted Oct 3, 2006·17 cites·14 claims
- 1679US4798494AFloating vibrational screedALLEN ENG CORP·Filed 1987·Granted Jan 17, 1989·47 cites·21 claims
- 1777US5238323ARiding trowel for concrete finishingALLEN ENG CORP·Filed 1992·Granted Aug 24, 1993·49 cites·8 claims
- 1875US5890833AHydraulically controlled riding trowelALLEN ENG CORP·Filed 1997·Granted Apr 6, 1999·49 cites·12 claims
- 1975USD400544SGuard for walk behind trowelALLEN ENG CORP·Filed 1997·Granted Nov 3, 1998·18 cites·1 claims
- 2075US5405216AFinishing trowel pitch control and clutch systemALLEN ENG CORP·Filed 1993·Granted Apr 11, 1995·46 cites·14 claims
- 2175US4676690AMaterial spreader systemALLEN ENG CORP·Filed 1983·Granted Jun 30, 1987·30 cites·20 claims
- 2273US6582153B1Edge guarded power riding trowelALLEN ENG CORP·Filed 2002·Granted Jun 24, 2003·20 cites·3 claims
- 2373US4697951AMaterial spreader systemALLEN ENG CORP·Filed 1984·Granted Oct 6, 1987·28 cites·42 claims
- 2472US7108449B1Method and apparatus for acoustically matched slip form concrete applicationALLEN ENG CORP·Filed 2004·Granted Sep 19, 2006·12 cites·13 claims
- 2572US6106193AHydraulically driven, multiple rotor riding trowelALLEN ENG CORP·Filed 1998·Granted Aug 22, 2000·43 cites·7 claims
- 2672US6019545ASurface finishing machine with rotatable guardALLEN ENG CORP·Filed 1998·Granted Feb 1, 2000·43 cites·17 claims
- 2770USD416564SRotatable guard for a finishing machineALLEN ENG CORP·Filed 1998·Granted Nov 16, 1999·15 cites·1 claims
- 2870USD404041SGuard for walk behind trowelALLEN ENG CORP·Filed 1997·Granted Jan 12, 1999·15 cites·1 claims
- 2968US7690864B2Hydraulic riding trowel with automatic load sensing systemALLEN ENG CORP·Filed 2008·Granted Apr 6, 2010·7 cites·12 claims
- 3068USD466909SRiding trowel having edge guards with safety coversALLEN ENG CORP·Filed 2002·Granted Dec 10, 2002·15 cites·1 claims
- 3168USD413127SGuard for walk behind trowelALLEN ENG CORP·Filed 1997·Granted Aug 24, 1999·14 cites·1 claims
- 3268US5685667AHigh performance contra-rotating riding trowelALLEN ENG CORP·Filed 1996·Granted Nov 11, 1997·36 cites·15 claims
- 3366US5533831AObstacle bypass system for concrete finishing toolsALLEN ENG CORP·Filed 1994·Granted Jul 9, 1996·28 cites·15 claims
- 3465US4349294AConcrete topping spreader systemALLEN ENG CORP·Filed 1980·Granted Sep 14, 1982·23 cites·11 claims
- 3564US6053660AHydraulically controlled twin rotor riding trowelALLEN ENG CORP·Filed 1998·Granted Apr 25, 2000·33 cites·26 claims
- 3664USD404042SConcrete saw with stabilized carriage and blade controlALLEN ENG CORP·Filed 1997·Granted Jan 12, 1999·12 cites·1 claims
- 3763US9068300B2Riding trowel with CVT clutch moduleALLEN ENG CORP·Filed 2014·Granted Jun 30, 2015·5 cites·2 claims
- 3863US6089786ADual rotor riding trowel with proportional electro-hydraulic steeringALLEN ENG CORP·Filed 1999·Granted Jul 18, 2000·32 cites·20 claims
- 3963US5816739AHigh performance triple rotor riding trowelALLEN ENG CORP·Filed 1997·Granted Oct 6, 1998·31 cites·20 claims
- 4063US4544346AConcrete screed with curb forming apparatusALLEN ENG CORP·Filed 1984·Granted Oct 1, 1985·22 cites·9 claims
- 4162US4685826AVibratory screed including a laterally displaceable oscillating strike-offALLEN ENG CORP·Filed 1986·Granted Aug 11, 1987·25 cites·7 claims
- 4262US4316715AVibratory concrete screed having an adjustable extension bracketALLEN ENG CORP·Filed 1979·Granted Feb 23, 1982·18 cites·13 claims
- 4360US8360680B2Hydraulic riding trowels with automatic load sensingALLEN ENG CORP·Filed 2010·Granted Jan 29, 2013·4 cites·19 claims
- 4459US5988939AUniversal bridge deck vibrating systemALLEN ENG CORP·Filed 1997·Granted Nov 23, 1999·23 cites·3 claims
- 4559USD410931SVentilated quick access support hood for riding trowelsALLEN ENG CORP·Filed 1997·Granted Jun 15, 1999·10 cites·1 claims
- 4659USD400542SStretch frame twin engine riding trowelALLEN ENG CORP·Filed 1996·Granted Nov 3, 1998·10 cites·1 claims
- 4758US4572704AHigh density concrete placing and finishing machineALLEN ENG CORP·Filed 1984·Granted Feb 25, 1986·19 cites·23 claims
- 4858US4349328ATriangular truss concrete screed having a pan float finisher attachmentALLEN ENG CORP·Filed 1981·Granted Sep 14, 1982·19 cites·6 claims
- 4957US9068301B2Single to dual stick trowel and steering conversionALLEN ENG CORP·Filed 2014·Granted Jun 30, 2015·3 cites·5 claims
- 5055USD474203SRiding trowel with rotatable ring edge guardALLEN ENG CORP·Filed 2002·Granted May 6, 2003·9 cites·1 claims
Showing the top 50 of 65 patent records by PatentIndex Score.
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