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.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →