F01C 1/22

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Description

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


Subclass 1/22: 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 internal-axis type with equidirectional movement of co-operating members at the points of engagement, or with one of the co-operating members being stationary, the inner member having more teeth or tooth-equivalents than the outer member

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
12203429 Aircraft power plant with detonation combustion tubeDec 15, 22Jan 21, 25PRATT & WHITNEY CANADA CORP.
12180838 Rotor assembly with cooling channels separated by ribs for a rotary engineApr 07, 23Dec 31, 24PRATT & WHITNEY CANADA CORP.
12180884 Rotary engine rotor and methodOct 28, 22Dec 31, 24PRATT & WHITNEY CANADA CORP.
12168954 Rotary combustion engineMar 26, 20Dec 17, 24USA as rep by the Secretary of the Navy
12158139 Pump body assembly and fluid machineJan 09, 23Dec 03, 24Gree Electric Appliances Inc. of Zhuhai
12152490 Fretting resistant rotary engine housingsJul 18, 23Nov 26, 24PRATT & WHITNEY CANADA CORP.
12146411 Rotary machineFeb 07, 24Nov 19, 24Lumenium LLC
12123341 Rotor engine side housing and method for producing the sameApr 07, 23Oct 22, 24PRATT & WHITNEY CANADA CORP.
12065960 Rotary pumpMay 15, 23Aug 20, 24The United States of America as represented by the Secretary of the Navy
12006827 Movement deviceJan 26, 22Jun 11, 24Construzioni Meccaniche Lonati S.p.A.
11988166 Rotary heat pumpJan 12, 21May 21, 24MARUKO KEIHOKI CO., LTD.
11988208 Sealing in helical trochoidal rotary machinesOct 07, 22May 21, 24Rotoliptic Technologies Incorporated
11976559 Rotor for a rotary engineApr 07, 23May 07, 24PRATT & WHITNEY CANADA CORP.
11970967 Rotary engineApr 28, 23Apr 30, 24Not available
11920476 Rotary machineFeb 28, 23Mar 05, 24Lumenium LLC
11913374 Rotary internal combustion engineAug 23, 22Feb 27, 24United States of America, as represented by the Secretary of the Navy Chief of Naval Research, Office of Counsel
11905836 Rotary engine with single dual-fuel injectorJun 08, 23Feb 20, 24PRATT & WHITNEY CANADA CORP.
11867179 Fluid transfer apparatus with a plurality of rotor housings arranged at different angularity with the neighboring rotor housingsJul 03, 19Jan 09, 24Korea Atomic Energy Research Institute
11767759 Pistonless rotary motor for air compressorMay 23, 22Sep 26, 23Not available
11725515 Rotary engine with recirculating arc roller power transferMay 31, 22Aug 15, 23Lumenium LLC

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2025/0075,622 FRETTING RESISTANT ROTARY ENGINE HOUSINGSNov 19, 24Mar 06, 25Not available
2024/0280,099 Sealing In Helical Trochoidal Rotary MachinesApr 18, 24Aug 22, 24Not available
2024/0110,480 Method for Producing a Housing, and Shell Housing and Housing for a Rotary Piston EngineSep 28, 23Apr 04, 24Not available
2023/0203,950 ROTARY MACHINEFeb 28, 23Jun 29, 23Not available
2021/0010,374 ROTARY ENGINE WITH RECIRCULATING ARC ROLLER POWER TRANSFERSep 04, 20Jan 14, 21Not available
2020/0300,091 SURFACE TEXTURE AND GROOVE DESIGNS FOR SLIDING CONTACTSMay 14, 18Sep 24, 20Not available
2020/0270,991 Rotary Engine RotorMay 13, 20Aug 27, 20Not available
2020/0200,008 Helical Trochoidal Rotary Machines With OffsetFeb 29, 20Jun 25, 20Not available
2020/0200,009 ROTARY ENGINE WITH HOUSING HAVING SILICON CARBIDE PLATEOct 28, 19Jun 25, 20Not available
2019/0186,352 AUXILIARY POWER UNIT WITH COMBINED COOLING OF GENERATORFeb 22, 19Jun 20, 19Not available
2019/0128,177 COMPOUND CYCLE ENGINEDec 20, 18May 02, 19Not available
2018/0371,910 CONTINUOUSLY VARIABLE TURBINEJun 21, 18Dec 27, 18Not available
2018/0291,740 Rotary MachineMar 16, 18Oct 11, 18Not available
2018/0163,541 ROTORY ENGINE WITH ROTOR LANDJan 26, 18Jun 14, 18Not available
2016/0376,021 AUXILIARY POWER UNIT WITH INTERCOOLERJun 25, 15Dec 29, 16PRATT & WHITNEY CANADA CORP.
2016/0312,612 Locating Device of Rotary Piston MechanismJun 10, 16Oct 27, 16HANLOG OY
2015/0240,638 TECHNIQUE FOR APEX-SEAL PROFILE DESIGNAug 28, 13Aug 27, 15THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

Average Time to Issuance