Assignee
K&N ENG INC
US·137 granted patents·82 pending applications·505 citations·filing 1997–2025
Top patents by PatentIndex Score
219 records- 0197US11478739B2Flangeless air filterK&N ENG INC·Filed 2020·Granted Oct 25, 2022·4 cites·19 claims
- 0297US11179664B2Cone air filterK&N ENG INC·Filed 2020·Granted Nov 23, 2021·4 cites·18 claims
- 0397US10316805B2Aircharger air intake system and methodK&N ENG INC·Filed 2017·Granted Jun 11, 2019·7 cites·19 claims
- 0497US9701178B2Cabin air filterK&N ENG INC·Filed 2015·Granted Jul 11, 2017·14 cites·15 claims
- 0596US10661215B2Cone air filterK&N ENG INC·Filed 2017·Granted May 26, 2020·8 cites·20 claims
- 0696US10632411B2HVAC home air filterK&N ENG INC·Filed 2016·Granted Apr 28, 2020·10 cites·20 claims
- 0796US10434466B2HVAC system air filterK&N ENG INC·Filed 2015·Granted Oct 8, 2019·10 cites·13 claims
- 0895US11181055B2Throttle controlled intake systemK&N ENG INC·Filed 2020·Granted Nov 23, 2021·3 cites·5 claims
- 0995US10512872B2HVAC home air filterK&N ENG INC·Filed 2016·Granted Dec 24, 2019·8 cites·16 claims
- 1095US9587535B2Drone elimination mufflerK&N ENG INC·Filed 2016·Granted Mar 7, 2017·9 cites·15 claims
- 1194US11872511B2Flangeless air filterK&N ENG INC·Filed 2022·Granted Jan 16, 2024·1 cites·20 claims
- 1291US11826687B2Cone air filterK&N ENG INC·Filed 2021·Granted Nov 28, 2023·1 cites·16 claims
- 1391US11351495B2HVAC home air filterK&N ENG INC·Filed 2020·Granted Jun 7, 2022·2 cites·20 claims
- 1491USD896139STruck push barK&N ENG INC·Filed 2019·Granted Sep 15, 2020·35 cites·1 claims
- 1591USD835767SSpace optimizing air filterK&N ENG INC·Filed 2017·Granted Dec 11, 2018·5 cites·1 claims
- 1691US8783092B2Oil migration systemK & N ENG INC·Filed 2013·Granted Jul 22, 2014·7 cites·2 claims
- 1791US2025389240A1Turbo-Boost Controlled Intake SystemK&N ENG INC·Filed 2025·Application pending·0 cites
- 1890US12589570B2Pleated filter preparation systemK&N ENG INC·Filed 2024·Granted Mar 31, 2026·0 cites·15 claims
- 1990US11401895B2Filter oil formulationK&N ENG INC·Filed 2019·Granted Aug 2, 2022·3 cites·9 claims
- 2090US10456727B2Reusable air filter system and methodK&N ENG INC·Filed 2017·Granted Oct 29, 2019·3 cites·15 claims
- 2190USD403414SCylindrical pleated air filter with top and sidewall filtering areasK & N ENG INC·Filed 1997·Granted Dec 29, 1998·47 cites·1 claims
- 2289US12147871B2Pleat counterK&N ENG INC·Filed 2022·Granted Nov 19, 2024·1 cites·15 claims
- 2389US11660834B2Pleated filter preparation systemK&N ENG INC·Filed 2021·Granted May 30, 2023·1 cites·20 claims
- 2489USD806544SCap coverK&N ENG INC·Filed 2016·Granted Jan 2, 2018·34 cites·1 claims
- 2588US11649776B2Turbo-boost control systemK&N ENG INC·Filed 2021·Granted May 16, 2023·1 cites·20 claims
- 2688US11344832B2Air filterK&N ENG INC·Filed 2017·Granted May 31, 2022·3 cites·11 claims
- 2788US11092120B2Air filter for turbochargers and superchargersK&N ENG INC·Filed 2019·Granted Aug 17, 2021·2 cites·2 claims
- 2888US10493392B2Air filterK&N ENG INC·Filed 2018·Granted Dec 3, 2019·2 cites·22 claims
- 2988US8028564B2Oil migration systemK & N ENG INC·Filed 2009·Granted Oct 4, 2011·8 cites·2 claims
- 3088US2025390119A1Portable Mass Airflow Training ModuleK&N ENG INC·Filed 2025·Application pending·0 cites
- 3187US12268988B2HVAC system air filterK&N ENG INC·Filed 2024·Granted Apr 8, 2025·0 cites·19 claims
- 3287USD690407SAir filterK & N ENG INC·Filed 2012·Granted Sep 24, 2013·37 cites·1 claims
- 3387US7637146B2Oil migration systemK & N ENG INC·Filed 2007·Granted Dec 29, 2009·8 cites·3 claims
- 3487US7581430B2Air velocity apparatus and systemK & N ENG INC·Filed 2007·Granted Sep 1, 2009·10 cites·8 claims
- 3586US12103264B2Pleated filter preparation systemK&N ENG INC·Filed 2023·Granted Oct 1, 2024·0 cites·20 claims
- 3686US10954903B2Air velocity apparatus and systemK&N ENG INC·Filed 2018·Granted Mar 23, 2021·1 cites·20 claims
- 3786US10473066B2Air filter for turbochargers and superchargersK&N ENG INC·Filed 2017·Granted Nov 12, 2019·2 cites·14 claims
- 3886US10233877B2Air filter cleaning wandK&N ENG INC·Filed 2016·Granted Mar 19, 2019·3 cites·20 claims
- 3986US9605627B2Air filter cleaning wandK&N ENG INC·Filed 2014·Granted Mar 28, 2017·4 cites·20 claims
- 4086US2024207768A1Flangeless Air FilterK&N ENG INC·Filed 2024·Application pending·0 cites
- 4186US2025325933A1Hydrocarbon absorbing air filter boxK&N ENG INC·Filed 2025·Application pending·0 cites
- 4285US12503991B2Filter oil formulationK&N ENG INC·Filed 2023·Granted Dec 23, 2025·0 cites·20 claims
- 4385US12404826B2Turbo-boost controlled intake systemK&N ENG INC·Filed 2024·Granted Sep 2, 2025·0 cites·18 claims
- 4485US12345221B2Curved base air filterK&N ENG INC·Filed 2024·Granted Jul 1, 2025·0 cites·16 claims
- 4585US12006898B2Aircharger air intake system and methodK&N ENG INC·Filed 2023·Granted Jun 11, 2024·0 cites·20 claims
- 4685US11383194B2Reusable air filter system and methodK&N ENG INC·Filed 2019·Granted Jul 12, 2022·1 cites·18 claims
- 4785US11241647B2HVAC home air filterK&N ENG INC·Filed 2019·Granted Feb 8, 2022·2 cites·20 claims
- 4885US10010823B2Air filterK&N ENG INC·Filed 2016·Granted Jul 3, 2018·2 cites·9 claims
- 4985USD401684SAir FilterK&N ENG INC·Filed 1997·Granted Nov 24, 1998·32 cites·1 claims
- 5085US2025067235A1Mass Airflow Sensor And Hydrocarbon Trap CombinationK&N ENG INC·Filed 2024·Application pending·0 cites
Showing the top 50 of 219 patent records by PatentIndex Score.
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