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Piston rings

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  • F02F5/00
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FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F02Combustion engines F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES

Current Industry

F02F5/00Piston rings
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Piston assembly with gapless oil control ring
    • Patent number 12,292,013
    • Issue date May 6, 2025
    • DeltaHawk Engines, Inc.
    • Graydon Robert Hegge
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Combined oil ring
    • Patent number 11,873,780
    • Issue date Jan 16, 2024
    • Nippon Piston Ring Co., Ltd.
    • Masahiro Uchiumi
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston sealing mechanism for a circulating piston engine
    • Patent number 11,814,962
    • Issue date Nov 14, 2023
    • Walter T. Bonin
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Air-fuel system for a circulating piston engine
    • Patent number 11,719,187
    • Issue date Aug 8, 2023
    • WB Development Company, LLC
    • Walter T. Bonin
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Grant

    Piston seal with solid lubricant applicator
    • Patent number 11,619,303
    • Issue date Apr 4, 2023
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring
    • Patent number 11,408,508
    • Issue date Aug 9, 2022
    • Federal-Mogul Burscheid GmbH
    • Walter Stumpf
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Flutter-suppression piston ring
    • Patent number 11,371,610
    • Issue date Jun 28, 2022
    • Federal-Mogul Burscheid GmbH
    • Richard Mittler
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Air-fuel system for a circulating piston engine
    • Patent number 11,352,977
    • Issue date Jun 7, 2022
    • W B Development Company LLC
    • Walter T. Bonin
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston assembly for an internal combustion engine of a motor vehicle
    • Patent number 11,313,466
    • Issue date Apr 26, 2022
    • GM Global Technology Operations LLC
    • Balakrishna Chinta
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring
    • Patent number 11,242,929
    • Issue date Feb 8, 2022
    • TPR CO., LTD.
    • Tomoyuki Sato
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston-integrated gap cover
    • Patent number 11,236,827
    • Issue date Feb 1, 2022
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Play-free oil scraper ring
    • Patent number 11,199,261
    • Issue date Dec 14, 2021
    • Federal-Mogul Burscheid GmbH
    • Nigel Gray
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Bearing assembly
    • Patent number 11,187,269
    • Issue date Nov 30, 2021
    • Ford Global Technologies, LLC
    • Khizer Tufail
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring
    • Patent number 11,078,868
    • Issue date Aug 3, 2021
    • Federal-Mogul Burscheid GmbH
    • Dirk Baerenreuter
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston for an internal combustion engine
    • Patent number 11,054,030
    • Issue date Jul 6, 2021
    • Mahle International GmbH
    • Christoph Beerens
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston seal with solid lubricant applicator
    • Patent number 10,927,953
    • Issue date Feb 23, 2021
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Supporting arrangement for an eccentric member of an adjusting arra...
    • Patent number 10,767,572
    • Issue date Sep 8, 2020
    • Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    • Michael Paul
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combined oil ring
    • Patent number 10,724,636
    • Issue date Jul 28, 2020
    • Nippon Piston Ring Co., Ltd.
    • Masataka Kawasaki
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Sliding member and piston ring
    • Patent number 10,670,147
    • Issue date Jun 2, 2020
    • KABUSHIKI KAISHA RIKEN
    • Kazuya Kameda
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston ring for combustion engine
    • Patent number 10,670,146
    • Issue date Jun 2, 2020
    • KABUSHIKI KAISHA RIKEN
    • Kazunori Natabe
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring
    • Patent number 10,619,739
    • Issue date Apr 14, 2020
    • Nippon Piston Ring Co., Ltd.
    • Takuya Ozaki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Pressure ring
    • Patent number 10,605,366
    • Issue date Mar 31, 2020
    • Toyota Jidosha Kabushiki Kaisha
    • Hisashi Ohki
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring and manufacturing method therefor
    • Patent number 10,578,214
    • Issue date Mar 3, 2020
    • Nippon Piston Ring Co., Ltd.
    • Takuya Ozaki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston ring and its production method
    • Patent number 10,502,319
    • Issue date Dec 10, 2019
    • Kabushiki Kaisha Riken
    • Yuji Shima
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Sliding element
    • Patent number 10,487,730
    • Issue date Nov 26, 2019
    • Mahle Metal Leve S/A
    • Juliano Avelar Araujo
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston for an internal combustion engine
    • Patent number 10,487,776
    • Issue date Nov 26, 2019
    • Mahle International GmbH
    • Frank Ehmann
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston-integrated gap cover
    • Patent number 10,465,795
    • Issue date Nov 5, 2019
    • EtaGen, Inc.
    • Matt Svrcek
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Side rail
    • Patent number 10,428,943
    • Issue date Oct 1, 2019
    • KABUSHIKI KAISHA RIKEN
    • Yuichiro Takezawa
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Piston ring
    • Patent number 10,415,704
    • Issue date Sep 17, 2019
    • KABUSHIKI KAISHA RIKEN
    • Masaaki Fujita
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Stamp-sealing unit and ultrasonic processing device comprising same
    • Patent number 10,393,152
    • Issue date Aug 27, 2019
    • Herrmann Ultraschalltechnik GmbH & Co. KG
    • Volker Aust
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Patents Applicationslast 30 patents

  • Information Patent Application

    Piston Assembly with Gapless Oil Control Ring
    • Publication number 20250230780
    • Publication date Jul 17, 2025
    • DELTAHAWK ENGINES, INC.
    • Graydon Robert Hegge
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Piston Unit, Top Land Member, and Combination of Piston Unit Parts
    • Publication number 20250109722
    • Publication date Apr 3, 2025
    • TPR CO., LTD.
    • Hiroyuki Nagakura
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    Piston Assembly with Gapless Oil Control Ring
    • Publication number 20240003314
    • Publication date Jan 4, 2024
    • DELTAHAWK ENGINES, INC.
    • Graydon Robert Hegge
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    AIR-FUEL SYSTEM FOR A CIRCULATING PISTON ENGINE
    • Publication number 20220290629
    • Publication date Sep 15, 2022
    • WB Development Company, LLC
    • Walter T. Bonin
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    COMBINED OIL RING
    • Publication number 20220090558
    • Publication date Mar 24, 2022
    • NIPPON PISTON RING CO., LTD
    • Masahiro UCHIUMI
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON SEAL WITH SOLID LUBRICANT APPLICATOR
    • Publication number 20210140542
    • Publication date May 13, 2021
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PLAY-FREE OIL SCRAPER RING
    • Publication number 20200378498
    • Publication date Dec 3, 2020
    • FEDERAL-MOGUL BURSCHEID GMBH
    • NIGEL GRAY
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING
    • Publication number 20200309263
    • Publication date Oct 1, 2020
    • FEDERAL-MOGUL BURSCHEID GMBH
    • WALTER STUMPF
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    AIR-FUEL SYSTEM FOR A CIRCULATING PISTON ENGINE
    • Publication number 20200141350
    • Publication date May 7, 2020
    • WB Development Company, LLC
    • Walter T. Bonin
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    PISTON-INTEGRATED GAP COVER
    • Publication number 20200124175
    • Publication date Apr 23, 2020
    • EtaGen, Inc.
    • Matt Svrcek
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    FLUTTER-SUPPRESSION PISTON RING
    • Publication number 20200096103
    • Publication date Mar 26, 2020
    • FEDERAL-MOGUL BURSCHEID GMBH
    • RICHARD MITTLER
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    SLIDING MEMBER AND PISTON RING
    • Publication number 20200056700
    • Publication date Feb 20, 2020
    • Kabushiki Kaisha Riken
    • Kazuya KAMEDA
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    SUPPORTING ARRANGEMENT FOR AN ECCENTRIC MEMBER OF AN ADJUSTING ARRA...
    • Publication number 20200003130
    • Publication date Jan 2, 2020
    • Dr. Ing. h.c.F. Porsche Aktiengesellschaft
    • Michael Paul
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING
    • Publication number 20190376467
    • Publication date Dec 12, 2019
    • Federal-Mogul Burscheid GmbH
    • Dirk BAERENREUTER
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Stamp-Sealing Unit and Ultrasonic Processing Device Comprising Same
    • Publication number 20190078591
    • Publication date Mar 14, 2019
    • HERRMANN ULTRASCHALLTECHNIK GMBH & CO. KG
    • Volker Aust
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PRESSURE RING
    • Publication number 20180299011
    • Publication date Oct 18, 2018
    • Toyota Jidosha Kabushiki Kaisha
    • Hisashi Ohki
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING AND ITS PRODUCTION METHOD
    • Publication number 20180209541
    • Publication date Jul 26, 2018
    • Kabushiki Kaisha Riken
    • Yuji Shima
    • C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
  • Information Patent Application

    PISTON RING FOR COMBUSTION ENGINE
    • Publication number 20180187780
    • Publication date Jul 5, 2018
    • Kabushiki Kaisha Riken
    • Kazunori NATABE
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    SLIDING MEMBER AND PISTON RING
    • Publication number 20180187781
    • Publication date Jul 5, 2018
    • Kabushiki Kaisha Riken
    • Masaki MORONUKI
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    OIL RING
    • Publication number 20180023702
    • Publication date Jan 25, 2018
    • Kabushiki Kaisha Riken
    • Daisuke NAKAMURA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING
    • Publication number 20180017159
    • Publication date Jan 18, 2018
    • Kabushiki Kaisha Riken
    • Masaaki FUJITA
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    COMBINED OIL CONTROL RING
    • Publication number 20170350508
    • Publication date Dec 7, 2017
    • Kabushiki Kaisha Riken
    • Takayuki ICHIKAWA
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Application

    WEAR RESISTANT PISTON RING COATING
    • Publication number 20140260959
    • Publication date Sep 18, 2014
    • Federal-Mogul Corporation
    • James R. Toth
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    PISTON RING
    • Publication number 20140225329
    • Publication date Aug 14, 2014
    • Toshikatsu Hayashi
    • C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
  • Information Patent Application

    PISTON RING
    • Publication number 20140137733
    • Publication date May 22, 2014
    • Kabushiki Kaisha Riken
    • Takuma Sekiya
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    PISTON RING WITH COMPOSITE COATING
    • Publication number 20140096736
    • Publication date Apr 10, 2014
    • Dirk Bärenreuter
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING FOR TWO-STROKE ENGINES
    • Publication number 20140076265
    • Publication date Mar 20, 2014
    • FEDERAL-MOGUL BURSCHEID GMBH
    • Richard Mittler
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    OIL SCRAPER RING
    • Publication number 20130307220
    • Publication date Nov 21, 2013
    • Burckhardt Compression AG
    • Norbert Feistel
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    OIL CONTROL RING
    • Publication number 20130291824
    • Publication date Nov 7, 2013
    • Norbert Feistel
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Application

    PISTON RING FOR AN INTERNAL COMBUSTION ENGINE
    • Publication number 20130213222
    • Publication date Aug 22, 2013
    • Federal-Mogul Corporation
    • Blair Matthew Jenness
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS