Assignee
INDIAN HEAD INC
US·86 granted patents·2 pending applications·2,757 citations·filing 1974–2018
Top patents by PatentIndex Score
88 records- 0198US4248459AFlexible conduit systemINDIAN HEAD INC·Filed 1978·Granted Feb 3, 1981·159 cites·4 claims
- 0298US4073514ACombination pipe fitting and retainer ringINDIAN HEAD INC·Filed 1976·Granted Feb 14, 1978·150 cites·30 claims
- 0396US6411206B1Brake monitoring systemINDIAN HEAD INC·Filed 2000·Granted Jun 25, 2002·69 cites·10 claims
- 0496US6352137B1Brake monitoring systemINDIAN HEAD INC·Filed 2000·Granted Mar 5, 2002·173 cites·25 claims
- 0595US6753771B2Vehicle monitoring systemINDIAN HEAD INC·Filed 2003·Granted Jun 22, 2004·44 cites·19 claims
- 0694US5536556AInsulating laminateINDIAN HEAD INC·Filed 1993·Granted Jul 16, 1996·137 cites·10 claims
- 0794US5258585AInsulating laminateINDIAN HEAD INC·Filed 1991·Granted Nov 2, 1993·141 cites·24 claims
- 0893US6501375B1Brake monitoring systemINDIAN HEAD INC·Filed 1997·Granted Dec 31, 2002·56 cites·50 claims
- 0993US3944058ABottle conveyor system including adjustable height continuous belt conveyor and positive lock spray shielded rotatable bottle carrierINDIAN HEAD INC·Filed 1974·Granted Mar 16, 1976·77 cites·6 claims
- 1092US4960036ATamper-resistant brake actuatorINDIAN HEAD INC·Filed 1987·Granted Oct 2, 1990·69 cites·11 claims
- 1191US6888451B1Method of monitoring the power spring of a spring brake actuatorINDIAN HEAD INC·Filed 2003·Granted May 3, 2005·27 cites·7 claims
- 1291US6360649B1Spring brake actuatorINDIAN HEAD INC·Filed 2000·Granted Mar 26, 2002·33 cites·17 claims
- 1391US6349629B1Brake actuatorINDIAN HEAD INC·Filed 2000·Granted Feb 26, 2002·42 cites·14 claims
- 1491US6255941B1Brake monitoring systemINDIAN HEAD INC·Filed 2000·Granted Jul 3, 2001·45 cites·29 claims
- 1589US6417768B2Method of assembling a monitor on a brake actuatorINDIAN HEAD INC·Filed 2001·Granted Jul 9, 2002·29 cites·19 claims
- 1689US3974599AUnderground reinforced plastic enclosureINDIAN HEAD INC·Filed 1975·Granted Aug 17, 1976·121 cites·11 claims
- 1787US4398097AAutomatic transfer switchINDIAN HEAD INC·Filed 1982·Granted Aug 9, 1983·108 cites·7 claims
- 1887US4309855AWall drainage systemINDIAN HEAD INC·Filed 1980·Granted Jan 12, 1982·46 cites·12 claims
- 1986US4440425AFlexible conduit systemINDIAN HEAD INC·Filed 1982·Granted Apr 3, 1984·53 cites·2 claims
- 2085US5531454AExpandable gasket, sealed joint and method of forming sameINDIAN HEAD INC·Filed 1994·Granted Jul 2, 1996·56 cites·15 claims
- 2185US4037810APipe bracket and clampINDIAN HEAD INC·Filed 1976·Granted Jul 26, 1977·47 cites·18 claims
- 2282US5565259ASelf-supporting impact resistant laminateINDIAN HEAD INC·Filed 1995·Granted Oct 15, 1996·45 cites·20 claims
- 2381US9855940B2Electronic stroke sensor for air disc brakeINDIAN HEAD INC·Filed 2014·Granted Jan 2, 2018·5 cites·23 claims
- 2481US5507217APerforate diaphragm alignment system for spring brake actuatorsINDIAN HEAD INC·Filed 1994·Granted Apr 16, 1996·25 cites·22 claims
- 2579US5067391ATamper-resistant brake actuatorINDIAN HEAD INC·Filed 1990·Granted Nov 26, 1991·43 cites·10 claims
- 2679US4124324AModular cable trench systemINDIAN HEAD INC·Filed 1978·Granted Nov 7, 1978·56 cites·21 claims
- 2778US4647074AFlexible conduit systemINDIAN HEAD INC·Filed 1985·Granted Mar 3, 1987·46 cites·2 claims
- 2877US4209661AConductor clamping deviceINDIAN HEAD INC·Filed 1978·Granted Jun 24, 1980·29 cites·4 claims
- 2976US4172578ADevice for clamping conduitINDIAN HEAD INC·Filed 1978·Granted Oct 30, 1979·34 cites·9 claims
- 3075US9440631B2Electronic stroke sensor for air disc brakeINDIAN HEAD INC·Filed 2013·Granted Sep 13, 2016·3 cites·13 claims
- 3174US4214668AElectrical box and mounting bracket assemblyINDIAN HEAD INC·Filed 1979·Granted Jul 29, 1980·32 cites·8 claims
- 3272US9873419B2Brake monitoring assembly for a rail systemINDIAN HEAD INC·Filed 2015·Granted Jan 23, 2018·2 cites·20 claims
- 3371US5676036ASmall envelope tamper-resistant spring brake actuatorINDIAN HEAD INC·Filed 1996·Granted Oct 14, 1997·22 cites·20 claims
- 3471US5536023AOne piece gasket for complex oil pan configurationINDIAN HEAD INC·Filed 1994·Granted Jul 16, 1996·33 cites·2 claims
- 3571US5263403AMethod of forming a tamper-resistant brake actuatorINDIAN HEAD INC·Filed 1993·Granted Nov 23, 1993·30 cites·9 claims
- 3670US5632192ASpring brake actuator with indicator for fully released conditionINDIAN HEAD INC·Filed 1995·Granted May 27, 1997·26 cites·20 claims
- 3770US5623863ADual-thread release bolt for spring brake actuatorINDIAN HEAD INC·Filed 1995·Granted Apr 29, 1997·21 cites·20 claims
- 3870US4036389ARetainer clip and synthetic resin box combinationINDIAN HEAD INC·Filed 1975·Granted Jul 19, 1977·20 cites·5 claims
- 3969US5392691AStone shield for air brake actuator with welded yokeINDIAN HEAD INC·Filed 1993·Granted Feb 28, 1995·18 cites·21 claims
- 4068US5311809AMethod of making tamper-resistant brake actuatorsINDIAN HEAD INC·Filed 1992·Granted May 17, 1994·31 cites·11 claims
- 4167US9440633B2Electronic stroke sensor for air disc brake with inspection portINDIAN HEAD INC·Filed 2014·Granted Sep 13, 2016·2 cites·15 claims
- 4267US8342076B2Brake actuator and method of forming the sameINDIAN HEAD INC·Filed 2008·Granted Jan 1, 2013·4 cites·27 claims
- 4366US6480107B2Apparatus for assembly of brake monitorINDIAN HEAD INC·Filed 2001·Granted Nov 12, 2002·13 cites·24 claims
- 4464US5662337AOne piece gasket for complex oil pan configurationINDIAN HEAD INC·Filed 1996·Granted Sep 2, 1997·23 cites·2 claims
- 4564US4081124ACarton wall with reinforcing ribINDIAN HEAD INC·Filed 1976·Granted Mar 28, 1978·29 cites·7 claims
- 4664US3951125AFootball passerINDIAN HEAD INC·Filed 1974·Granted Apr 20, 1976·24 cites·19 claims
- 4763US5775202ADeformed clamp band made from continuous rollINDIAN HEAD INC·Filed 1996·Granted Jul 7, 1998·17 cites·3 claims
- 4863US5636562ASpring brake actuator with release tool requiring limited axial spaceINDIAN HEAD INC·Filed 1995·Granted Jun 10, 1997·18 cites·11 claims
- 4962US6267043B1Brake actuator assemblyINDIAN HEAD INC·Filed 1999·Granted Jul 31, 2001·16 cites·20 claims
- 5062US5992297AEasy fit diaphragmINDIAN HEAD INC·Filed 1998·Granted Nov 30, 1999·22 cites·15 claims
Showing the top 50 of 88 patent records by PatentIndex Score.
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