F16J 1/08

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Class  F16J : PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS


Subclass 1/08: Pistons; Trunk pistons; Plungers (bellows pistons F16J 3/06; piston-rings or seats therefor F16J 9/00; rotary pistons, e.g. for "Wankel" type engines, F01C; specific for combustion engines, i.e. constructed to withstand high temperature or modified for guiding, igniting, vaporising, or otherwise treating the charge, F02F; pistons specially adapted for reciprocating-piston liquid engines F03C 1/28; for pumps F04B; floats F16K 33/00) Constructional features providing for lubrication

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12258950 Open channel plunger for fracking pumpsJan 12, 23Mar 25, 25GD ENERGY PRODUCTS, LLC
12196315 Tube in tube lubrication for a gas cylinderMar 25, 22Jan 14, 25Barnes Group Inc.
12194607 Working cylinder for power tool with piston lubricating systemAug 01, 22Jan 14, 25Kyocera Senco Industrial Tools, Inc.
12049960 Piston—crankshaft connecting means for internal combustion engineSep 09, 22Jul 30, 24Not available
12044312 Piston for an internal combustion engineDec 16, 20Jul 23, 24Caterpillar Motoren GmbH & Co. KG
12007024 Lubricating mechanism of pin connection pair of internal combustion engineSep 21, 21Jun 11, 24MAHLE AUTOMOTIVE TECHNOLOGIES (CHINA) CO., LTD.; Mahle International GmbH;
11846351 Piston having oil return passageNov 08, 22Dec 19, 23MAHLE International GmbH; Mahle Automotive Technologies (China) Co., Ltd.;
11668394 Piston and reciprocating compressorJun 13, 22Jun 06, 23Kabushiki Kaisha Kobe Seiko Sho ( Kobe Steel Ltd.)
11506285 Piston and cylinder of an internal combustion engineSep 19, 19Nov 22, 22MAN Energy Solutions SE
11413734 Working cylinder for power tool with piston lubricating systemOct 16, 19Aug 16, 22Kyocera Senco Industrial Tools, Inc.
11402020 Piston with multiaxial bearing and piston bowlDec 17, 20Aug 02, 22Cummins Inc.; Achates Power Inc.;
11384685 Casella hydraulic variable compression ratio pistonJan 14, 21Jul 12, 22Not available
11346338 Linear compressorFeb 19, 20May 31, 22LG Electronics Inc.
11326693 Lubrication system for a piston pumpFeb 13, 20May 10, 22Dowell -- A Division of Schlumberger Technology Corporation
11313466 Piston assembly for an internal combustion engine of a motor vehicleAug 29, 19Apr 26, 22GM Global Technology Operations LLC
11248557 Piston having oil gallery drain outlets biased in distribution to anti-thrust sideDec 03, 20Feb 15, 22Caterpillar Inc.
11125269 Connecting rod assembly to modify the phases of an internal combustion engineOct 27, 20Sep 21, 21Not available
11009050 Hybrid surface finish for a hydraulic linear sealing systemDec 13, 16May 18, 21INDUSTRIES MAILHOT INC.
10927787 Piston for internal combustion engineSep 18, 19Feb 23, 21Suzuki Motor Corporation
10927953 Piston seal with solid lubricant applicatorAug 09, 18Feb 23, 21Mainspring Energy, Inc.

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0092,950 PISTON-CYLINDER UNIT, METHOD FOR PRODUCING THE PISTON-CYLINDER UNITJan 03, 23Mar 20, 25Not available
2024/0288,072 Slotted guide ring with recirculating lubrication and piston-cylinder unitMay 15, 24Aug 29, 24Trelleborg Sealing Solutions Germany GmbH
2020/0370,648 HYDRAULIC PISTON ASSEMBLYMay 23, 19Nov 26, 20Schaeffler Technologies AG & Co. KG
2020/0132,193 PISTON OF AN INTERNAL COMBUSTION ENGINESep 04, 19Apr 30, 20Not available
2019/0170,063 OPPOSED-PISTON COMPACT ENGINE WITH CRANKSHAFTS ROTATING ON A DIFFERENT PLANT TO THOSE OF THE CYLINDER AXESMay 27, 16Jun 06, 19Not available
2019/0154,150 ACTUATOR ASSEMBLY HAVING SELF-LUBRICATING COMPONENTSOct 19, 18May 23, 19Not available
2019/0072,181 HYDRAULIC PISTON WITH COOLING AND LUBRICATION VALVEAug 29, 18Mar 07, 19Not available
2015/0240,943 REDUCED FRICTION OIL CONTROL PISTON RINGSSep 24, 13Aug 27, 15Not available

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Patents Issued To Date - By Filing Year

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