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characterised by the use of particular materials

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Parent Industries

FMECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING ENGINES OR PUMPS F16Engineering elements F16JPISTONS CYLINDERS SEALINGS F16J9/00Piston-rings

Current Industry

F16J9/26characterised by the use of particular materials
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Oil ring wire
    • Patent number 12,365,959
    • Issue date Jul 22, 2025
    • Tokusen Kogyo Co., Ltd.
    • Miho Fujino
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    Piston ring with hard plating, and preparation method therefor
    • Patent number 12,345,336
    • Issue date Jul 1, 2025
    • Asimco Shuanghuan Piston Ring (yizheng) Co., Ltd.
    • Kaishun Li
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Functionally graded composite structures
    • Patent number 12,297,867
    • Issue date May 13, 2025
    • Dover Pumps & Process Solutions Segment, Inc.
    • Burak Bekisli
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Sliding element, in particular piston ring
    • Patent number 12,292,119
    • Issue date May 6, 2025
    • Federal-Mogul Burscheid GmbH
    • Gregor Englberger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    CRN coating film and sliding member
    • Patent number 12,281,380
    • Issue date Apr 22, 2025
    • TPR CO., LTD.
    • Syun Sugawara
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Wear-resistant and low-friction coated piston ring and preparation...
    • Patent number 12,203,553
    • Issue date Jan 21, 2025
    • Asimco Shuanghuan Piston Ring (yizheng) Co., Ltd.
    • Weiwei Shi
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston ring, and method for manufacturing same
    • Patent number 12,188,564
    • Issue date Jan 7, 2025
    • Hiroki Saito
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Self-lubricating, wear resistant piston seal
    • Patent number 12,158,210
    • Issue date Dec 3, 2024
    • RTX Corporation
    • Kelly M. Harrington
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring and method of manufacture
    • Patent number 12,123,500
    • Issue date Oct 22, 2024
    • Mahle International GmbH
    • Jose Valentim Lima Sarabanda
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston ring
    • Patent number 12,117,085
    • Issue date Oct 15, 2024
    • Mahle International GmbH
    • Bruno Fineto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston sealing ring assembly having a gap cover element
    • Patent number 12,078,249
    • Issue date Sep 3, 2024
    • Mainspring Energy, Inc.
    • Jodie Prudhomme
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston sealing ring assemblies
    • Patent number 12,078,250
    • Issue date Sep 3, 2024
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring
    • Patent number 12,066,111
    • Issue date Aug 20, 2024
    • TPR CO., LTD.
    • Satoshi Minemura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Part coated with a hydrogenated amorphous carbon coating on an unde...
    • Patent number 12,012,657
    • Issue date Jun 18, 2024
    • HYDROMECANIQUE ET FROTTEMENT
    • Laurent Bombillon
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston for reciprocating compressor having complementary sealing el...
    • Patent number 11,982,265
    • Issue date May 14, 2024
    • FAIVELEY TRANSPORT ITALIA S. p. A.
    • Corrado Rossino
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Low friction, wear resistant piston seal
    • Patent number 11,976,732
    • Issue date May 7, 2024
    • RTX Corporation
    • Pantcho P. Stoyanov
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sliding member, manufacturing method thereof, and coating film
    • Patent number 11,946,010
    • Issue date Apr 2, 2024
    • Nippon Piston Ring Co., Ltd.
    • Takahiro Okazaki
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Compression ring
    • Patent number 11,933,407
    • Issue date Mar 19, 2024
    • Kabushiki Kaisha Riken
    • Hiroaki Saito
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Coated piston ring for an internal combustion engine
    • Patent number 11,906,052
    • Issue date Feb 20, 2024
    • Tenneco Inc.
    • Robert Reuven Aharonov
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Internal combustion engine
    • Patent number 11,906,051
    • Issue date Feb 20, 2024
    • Nissan North America Inc.
    • Williams Muñoz
    • F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • Information Patent Grant

    Sliding member
    • Patent number 11,867,294
    • Issue date Jan 9, 2024
    • TPR CO., LTD.
    • Tomoyuki Sato
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Sliding member
    • Patent number 11,867,295
    • Issue date Jan 9, 2024
    • TPR CO., LTD.
    • Tomoyuki Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Combination of cylinder and piston ring
    • Patent number 11,821,524
    • Issue date Nov 21, 2023
    • Kabushiki Kaisha Riken
    • Akio Shinohara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring for engine and machining method of piston ring
    • Patent number 11,788,622
    • Issue date Oct 17, 2023
    • Mahle Automotive Technologies (China) Co., Ltd.
    • Wentao Jiang
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston sealing ring assembly having a gap cover element
    • Patent number 11,767,915
    • Issue date Sep 26, 2023
    • Mainspring Energy, Inc.
    • Jodie Prudhomme
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Piston ring and method for manufacturing same
    • Patent number 11,746,903
    • Issue date Sep 5, 2023
    • Akio Shinohara
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Piston ring
    • Patent number 11,739,840
    • Issue date Aug 29, 2023
    • Nippon Piston Ring Co., Ltd.
    • Kyoichi Ikeya
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Sliding member
    • Patent number 11,692,248
    • Issue date Jul 4, 2023
    • Nippon Piston Ring Co., Ltd.
    • Noriaki Chida
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Grant

    Scraper ring for a piston
    • Patent number 11,674,595
    • Issue date Jun 13, 2023
    • Caterpillar Inc.
    • Adam Joseph Clute
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • 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

Patents Applicationslast 30 patents

  • Information Patent Application

    LIGHT WEIGHT HYBRID PISTON SEAL RING
    • Publication number 20250224034
    • Publication date Jul 10, 2025
    • RTX Corporation
    • Hamidreza Mohseni
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING WITH HARD PLATING, AND PREPARATION METHOD THEREFOR
    • Publication number 20250215974
    • Publication date Jul 3, 2025
    • Asimco Shuanghuan Piston Ring (yizheng) Co., Ltd.
    • Kaishun LI
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    SLIDING MECHANISM
    • Publication number 20250180117
    • Publication date Jun 5, 2025
    • Kabushiki Kaisha Riken
    • Satoshi ISHIDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON RING
    • Publication number 20250129847
    • Publication date Apr 24, 2025
    • Kabushiki Kaisha Riken
    • Junya TAKAHASHI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING AND INTERNAL COMBUSTION ENGINE
    • Publication number 20250102062
    • Publication date Mar 27, 2025
    • MAHLE International GmbH
    • Rafael Rabello
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RINGS AND BARREL SLEEVES
    • Publication number 20250075794
    • Publication date Mar 6, 2025
    • HAMILTON SUNDSTRAND CORPORATION
    • Jecee Jarman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    PISTON SEALING RING ASSEMBLY HAVING A GAP COVER ELEMENT
    • Publication number 20250067340
    • Publication date Feb 27, 2025
    • Mainspring Energy, Inc.
    • Jodie Prudhomme
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON SEALING RING ASSEMBLIES
    • Publication number 20250060035
    • Publication date Feb 20, 2025
    • Mainspring Energy, Inc.
    • Matt Svrcek
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    COMPOSITE HARD CHROME PLATING
    • Publication number 20250019854
    • Publication date Jan 16, 2025
    • DIC CORPORATION
    • Ryo KANDA
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Application

    PISTON RING AND METHOD OF MANUFACTURE
    • Publication number 20250012358
    • Publication date Jan 9, 2025
    • MAHLE International GmbH
    • Jose Valentim Lima Sarabanda
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    FUNCTIONALLY GRADED COMPOSITE STRUCTURES
    • Publication number 20240410424
    • Publication date Dec 12, 2024
    • Dover Pumps & Process Solutions Segment, Inc.
    • Burak Bekisli
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Application

    PISTON RING HAVING A WEAR PROTECTION LAYER CONTAINING PARTICLES, ME...
    • Publication number 20240384791
    • Publication date Nov 21, 2024
    • FEDERAL-MOGUL BURSCHEID GMBH
    • Stefan Dürdoth
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Application

    COATING FOR A PISTON RING
    • Publication number 20240376983
    • Publication date Nov 14, 2024
    • MAHLE International GmbH
    • Fabio Mendes de Araujo
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    GIFFORD-MCMAHON (GM) CRYOCOOLER FIRST-STAGE DISPLACER, FIRST-STAGE...
    • Publication number 20240377108
    • Publication date Nov 14, 2024
    • Sumitomo Heavy Industries, Ltd.
    • Hisao KAWAKAMI
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Piston Ring
    • Publication number 20240263699
    • Publication date Aug 8, 2024
    • TPR CO., LTD.
    • Satoshi Minemura
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING
    • Publication number 20240240714
    • Publication date Jul 18, 2024
    • HAMILTON SUNDSTRAND CORPORATION
    • Jecee Jarman
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    SLIDING MEMBER, MANUFACTURING METHOD THEREOF, AND COATING FILM
    • Publication number 20240159313
    • Publication date May 16, 2024
    • NIPPON PISTON RING CO., LTD
    • Hiroyuki SUGIURA
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    PISTON RING
    • Publication number 20240125386
    • Publication date Apr 18, 2024
    • NTN Corporation
    • Ken YASUDA
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    METHODS FOR SURFACE MODIFICATION OF MID-TURBINE FRAME PISTON SEAL R...
    • Publication number 20240117880
    • Publication date Apr 11, 2024
    • RTX Corporation
    • Hamidreza Mohseni
    • F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
  • Information Patent Application

    SLIDING MEMBER
    • Publication number 20240110287
    • Publication date Apr 4, 2024
    • MAHLE International GmbH
    • Juliano Avelar Araújo
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    OIL RING WIRE
    • Publication number 20240093325
    • Publication date Mar 21, 2024
    • TOKUSEN KOGYO CO., LTD.
    • Miho FUJINO
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    PISTON RINGS AND METHODS OF MANUFACTURE
    • Publication number 20240035570
    • Publication date Feb 1, 2024
    • NANOFILM VACUUM COATING (SHANGHAI) CO., LTD.
    • Chao DU
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    OIL RING WIRE
    • Publication number 20240026972
    • Publication date Jan 25, 2024
    • TOKUSEN KOGYO CO., LTD.
    • Kei OTANI
    • C21 - METALLURGY OF IRON
  • Information Patent Application

    PISTON RING
    • Publication number 20240026971
    • Publication date Jan 25, 2024
    • MAHLE International GmbH
    • Bruno Fineto
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    CRN Coating Film and Sliding Member
    • Publication number 20230416903
    • Publication date Dec 28, 2023
    • TPR CO., LTD.
    • Syun Sugawara
    • C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
  • Information Patent Application

    Sliding Member
    • Publication number 20230392688
    • Publication date Dec 7, 2023
    • TPR CO., LTD.
    • Tomoyuki Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Sliding Member
    • Publication number 20230392687
    • Publication date Dec 7, 2023
    • TPR CO., LTD.
    • Tomoyuki Sato
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SLIDING ELEMENT, IN PARTICULAR PISTON RING
    • Publication number 20230332686
    • Publication date Oct 19, 2023
    • FEDERAL-MOGUL BURSCHEID GMBH
    • GREGOR ENGLBERGER
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PISTON RING WITH HARD CHROMIUM LAYER AND IMPROVED RUNNING-IN BEHAVIOUR
    • Publication number 20230147997
    • Publication date May 11, 2023
    • FEDERAL-MOGUL BURSCHEID GMBH
    • Peter Schmidt
    • C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
  • Information Patent Application

    SLIDING ELEMENT, IN PARTICULAR PISTON RING, AND METHOD FOR PRODUCIN...
    • Publication number 20230134881
    • Publication date May 4, 2023
    • FEDERAL-MOGUL BURSCHEID GMBH
    • JOHANNES ESSER
    • C21 - METALLURGY OF IRON