Assignee
TETRA TECH
US·135 granted patents·15 pending applications·2,210 citations·filing 1979–2025
Top patents by PatentIndex Score
150 records- 0199US11377130B2Autonomous track assessment systemTETRA TECH·Filed 2020·Granted Jul 5, 2022·13 cites·18 claims
- 0299US11259007B23D track assessment methodTETRA TECH·Filed 2020·Granted Feb 22, 2022·9 cites·23 claims
- 0399US11196981B23D track assessment apparatus and methodTETRA TECH·Filed 2021·Granted Dec 7, 2021·8 cites·30 claims
- 0499US11169269B2System and method for generating and interpreting point clouds of a rail corridor along a survey pathTETRA TECH·Filed 2020·Granted Nov 9, 2021·17 cites·31 claims
- 0598US11399172B23D track assessment apparatus and methodTETRA TECH·Filed 2021·Granted Jul 26, 2022·3 cites·30 claims
- 0698US10362293B23D track assessment system and methodTETRA TECH·Filed 2015·Granted Jul 23, 2019·23 cites·43 claims
- 0798US9860962B2Light emission power control apparatus and methodTETRA TECH·Filed 2016·Granted Jan 2, 2018·21 cites·9 claims
- 0898US9849895B2Sensor synchronization apparatus and methodTETRA TECH·Filed 2015·Granted Dec 26, 2017·27 cites·15 claims
- 0998US9618335B2Light emission power control apparatus and methodTETRA TECH·Filed 2015·Granted Apr 11, 2017·21 cites·16 claims
- 1097US10908291B2System and method for generating and interpreting point clouds of a rail corridor along a survey pathTETRA TECH·Filed 2020·Granted Feb 2, 2021·6 cites·24 claims
- 1197US10730538B2Apparatus and method for calculating plate cut and rail seat abrasion based on measurements only of rail head elevation and crosstie surface elevationTETRA TECH·Filed 2019·Granted Aug 4, 2020·15 cites·10 claims
- 1297US10616556B23D track assessment methodTETRA TECH·Filed 2019·Granted Apr 7, 2020·13 cites·14 claims
- 1397US10582187B23D track assessment methodTETRA TECH·Filed 2019·Granted Mar 3, 2020·20 cites·10 claims
- 1497US10384697B2Protective shroud for enveloping light from a light emitter for mapping of a railway trackTETRA TECH·Filed 2017·Granted Aug 20, 2019·12 cites·15 claims
- 1597US10349491B2Light emission power control apparatus and methodTETRA TECH·Filed 2017·Granted Jul 9, 2019·16 cites·17 claims
- 1697US10322734B2Sensor synchronization apparatus and methodTETRA TECH·Filed 2017·Granted Jun 18, 2019·16 cites·13 claims
- 1797US9950720B2Light emission power control apparatus and methodTETRA TECH·Filed 2017·Granted Apr 24, 2018·19 cites·5 claims
- 1897US7922424B2Method of cutting target members using a cutting saw deviceTETRA TECH·Filed 2008·Granted Apr 12, 2011·47 cites·25 claims
- 1996US10616558B23D track assessment methodTETRA TECH·Filed 2019·Granted Apr 7, 2020·11 cites·5 claims
- 2096US10616557B23D track assessment methodTETRA TECH·Filed 2019·Granted Apr 7, 2020·14 cites·16 claims
- 2196US10435052B2Broken wheel detection systemTETRA TECH·Filed 2018·Granted Oct 8, 2019·13 cites·17 claims
- 2296US9849894B2Protective shroud for enveloping light from a light emitter for mapping of a railway trackTETRA TECH·Filed 2015·Granted Dec 26, 2017·12 cites·17 claims
- 2396US6143698AMethod for removing filtercakeTETRA TECH·Filed 1998·Granted Nov 7, 2000·186 cites·20 claims
- 2496US4268115AQuick-release fiber-optic connectorTETRA TECH·Filed 1979·Granted May 19, 1981·221 cites·9 claims
- 2595US11782160B2System and method for generating and interpreting point clouds of a rail corridor along a survey pathTETRA TECH·Filed 2021·Granted Oct 10, 2023·2 cites·19 claims
- 2694US10807623B2Apparatus and method for gathering data from sensors oriented at an oblique angle relative to a railway trackTETRA TECH·Filed 2019·Granted Oct 20, 2020·9 cites·15 claims
- 2794US10625760B2Apparatus and method for calculating wooden crosstie plate cut measurements and rail seat abrasion measurements based on rail head heightTETRA TECH·Filed 2018·Granted Apr 21, 2020·15 cites·16 claims
- 2894US8696245B2Articulating band saw and methodTETRA TECH·Filed 2013·Granted Apr 15, 2014·14 cites·19 claims
- 2994US6131661AMethod for removing filtercakeTETRA TECH·Filed 1998·Granted Oct 17, 2000·162 cites·25 claims
- 3093US11827599B1Method of preparing ionic fluidsTETRA TECH·Filed 2022·Granted Nov 28, 2023·1 cites·22 claims
- 3193US11344897B1Method and apparatus for hydrocycloneTETRA TECH·Filed 2020·Granted May 31, 2022·3 cites·13 claims
- 3293US9919370B1Method of cutting target members using a cutting saw deviceTETRA TECH·Filed 2017·Granted Mar 20, 2018·4 cites·18 claims
- 3393US7645093B1Articulating band saw and methodTETRA TECH·Filed 2008·Granted Jan 12, 2010·25 cites·11 claims
- 3493US4595839ABidirectional optical electronic converting connector with integral preamplificationTETRA TECH·Filed 1985·Granted Jun 17, 1986·181 cites·13 claims
- 3591US9052037B2Rapid deployment frac water transfer systemTETRA TECH·Filed 2012·Granted Jun 9, 2015·12 cites·37 claims
- 3691US5917110AMoisture-resistant calcium containing particlesTETRA TECH·Filed 1996·Granted Jun 29, 1999·75 cites·30 claims
- 3789US10870441B2Apparatus and method for gathering data from sensors oriented at an oblique angle relative to a railway trackTETRA TECH·Filed 2020·Granted Dec 22, 2020·2 cites·13 claims
- 3889US7387031B1Method for monitoring corrosion damage to a metal sampleTETRA TECH·Filed 2006·Granted Jun 17, 2008·22 cites·36 claims
- 3987US4554511AOffset voltage correction network for instantaneous floating point amplifierTETRA TECH·Filed 1982·Granted Nov 19, 1985·30 cites·26 claims
- 4086US11920439B1Situ treatment analysis mixing systemTETRA TECH·Filed 2022·Granted Mar 5, 2024·1 cites·20 claims
- 4186US8540022B1Method of delivering frac fluid and additivesTETRA TECH·Filed 2012·Granted Sep 24, 2013·5 cites·17 claims
- 4286US5907908ADehumidifying pouchTETRA TECH·Filed 1997·Granted Jun 1, 1999·90 cites·30 claims
- 4386US5891225AMethod for applying halide brines to surfacesTETRA TECH·Filed 1998·Granted Apr 6, 1999·62 cites·26 claims
- 4485US10082011B1Method of delivering frac fluid and additivesTETRA TECH·Filed 2017·Granted Sep 25, 2018·1 cites·13 claims
- 4585US6886635B2Filter cake removal fluid and methodTETRA TECH·Filed 2002·Granted May 3, 2005·57 cites·29 claims
- 4685US6124244AClear brine drill-in fluidTETRA TECH·Filed 1999·Granted Sep 26, 2000·79 cites·33 claims
- 4784US12194421B1Multi chamber mixing manifoldTETRA TECH·Filed 2023·Granted Jan 14, 2025·0 cites·18 claims
- 4884US10723373B2Broken wheel detection systemTETRA TECH·Filed 2019·Granted Jul 28, 2020·2 cites·17 claims
- 4984US10213757B1In situ treatment analysis mixing systemTETRA TECH·Filed 2015·Granted Feb 26, 2019·5 cites·22 claims
- 5084US9732602B1Method of delivering fracturing fluid and additives by formulating an aqueous based fluid for optimal fracturing fluid characteristicsTETRA TECH·Filed 2015·Granted Aug 15, 2017·2 cites·13 claims
Showing the top 50 of 150 patent records by PatentIndex Score.
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