F01C 1/10

Sub-Class

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Description

Class  F01C : ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES


Subclass 1/10: Rotary-piston machines or engines (with axes of co-operating members non-parallel F01C 3/00; with the working-chamber walls at least partly resiliently deformable F01C 5/00; with fluid ring or the like F01C 7/00; rotary-piston machines or engines in which the working fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F01B 13/00) of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12264656 Integrated energy generating damperOct 12, 22Apr 01, 25ClearMotion, Inc.
12152588 Free-mold stator for a progressing cavity pumpMay 26, 23Nov 26, 24GRANT PRIDECO, INC.
12140144 Mud motor rotor with core and shellSep 26, 23Nov 12, 24Dowell -- A Division of Schlumberger Technology Corporation
12084975 High modulus liners in PDM stators with diameter reliefs compensating for rotor tiltOct 06, 23Sep 10, 24Abaco Drilling Technologies LLC
12018688 Sealing assembly for a progressive cavity pumpJan 09, 23Jun 25, 24Johnson & Johnson Surgical Vision, Inc.
11988208 Sealing in helical trochoidal rotary machinesOct 07, 22May 21, 24Rotoliptic Technologies Incorporated
11939870 Gas-cycle system for heating or coolingAug 10, 20Mar 26, 24Not available
11808153 Positive displacement motor stators with diameter reliefs compensating for rotor tiltOct 20, 22Nov 07, 23Abaco Drilling Technologies LLC
11795946 Mud motor rotor with core and shellMar 04, 21Oct 24, 23Dowell -- A Division of Schlumberger Technology Corporation
11655814 Progressive cavity pump for the tintometric industryMar 13, 20May 23, 23Not available
11655815 Semi-rigid statorDec 14, 20May 23, 23Roper Pump Company, LLC
11608827 Helical trochoidal rotary machines with offsetMar 10, 21Mar 21, 23Rotoliptic Technologies Incorporated
11499550 Sealing in helical trochoidal rotary machinesOct 11, 20Nov 15, 22Rotoliptic Technologies Incorporated
11499535 Integrated energy generating damperApr 16, 20Nov 15, 22ClearMotion, Inc.
11492907 Cartiodal rotary machine with two-lobe rotorNov 04, 20Nov 08, 22Not available
11448211 Oil pump including gap between flange portion of tubular core and flange-opposing portion of resin housingAug 22, 19Sep 20, 22Toyoda Gosei Co., Ltd.
11421693 Progressing cavity device with cutter disksMay 22, 20Aug 23, 22Roper Pump Company, LLC
11421533 Tapered stators in positive displacement motors remediating effects of rotor tiltApr 02, 21Aug 23, 22Abaco Drilling Technologies LLC
11408420 Stator and uniaxial eccentric screw pumpMar 15, 18Aug 09, 22HEISHIN Ltd.
11377953 Rotary fluid pressure device with drive-in-drive valve arrangementMar 16, 20Jul 05, 22Danfoss Power Solutions II Technology A/S

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0116,223 ROTARY PISTON MACHINEOct 04, 24Apr 10, 25Not available
2024/0426,214 ROTOR TILT COMPENSATION IN PDM STATORSSep 09, 24Dec 26, 24Not available
2024/0280,099 Sealing In Helical Trochoidal Rotary MachinesApr 18, 24Aug 22, 24Not available
2024/0044,251 HIGH MODULUS LINERS IN PDM STATORS WITH DIAMETER RELIEFS COMPENSATING FOR ROTOR TILTOct 06, 23Feb 08, 24Not available
2022/0381,145 MODULAR ROTARY ENGINENov 02, 20Dec 01, 22Not available
2020/0300,091 SURFACE TEXTURE AND GROOVE DESIGNS FOR SLIDING CONTACTSMay 14, 18Sep 24, 20Not available
2020/0200,008 Helical Trochoidal Rotary Machines With OffsetFeb 29, 20Jun 25, 20Not available
2018/0347,362 GEROTOR APPARATUSJun 05, 17Dec 06, 18Not available
2018/0347,361 MUD MOTOR INVERSE POWER SECTIONMay 30, 17Dec 06, 18Reme Technologies, LLC
2015/0354,357 HYDRAULIC GEAR MOTOR, GEAR PUMP AND GEARBOX WITH CONTINUOUSLY VARIABLE PARAMETERSFeb 10, 14Dec 10, 15Not available
2015/0152,732 GEROTOR APPARATUS FOR A QUASI-ISOTHERMAL BRAYTON CYCLE ENGINEDec 08, 14Jun 04, 15Not available

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

Average Time to Issuance