Topic leaderboard
Indexing scheme for positive-displacement pumps
Ranked by the PatentIndex Score — a 1–99 percentile within F05C · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F05C patents became public in the last 2 years — the current frontier
- 199Robert Bohmer6 patents · 32 citations
- 296Peter Thomas Cariveau7 patents · 32 citations
- 392Kyle Maples5 patents · 11 citations
- 488Roger Palmer5 patents · 11 citations
- 583Vladimir Muzichuk5 patents · 11 citations
- 679David Gagnon-Martin3 patents · 18 citations
- 775Johnny Vinski4 patents · 13 citations
- 871Martin K Yates4 patents · 13 citations
- 967Roland Ennsmann2 patents · 26 citations
- 1063Jean-Philippe Simoneau3 patents · 11 citations
- 1158Andreas Foerster3 patents · 4 citations
- 1254Gerald Weih3 patents · 4 citations
- 1350Sebastien Bolduc2 patents · 11 citations
- 1446Norihisa Watanabe2 patents · 3 citations
- 1542Karen Anna Leon Marien2 patents · 2 citations
- 1638Michel Bousquet2 patents · 2 citations
- 1733Thomas Klotten2 patents · 2 citations
- 1829Christopher Gover1 patents · 2 citations
- 1925Larry Lebel1 patents · 2 citations
- 2021Aaron Hirschmann2 patents · 0 citations
- 2117Robert Fesus2 patents · 0 citations
- 2213Nitesh Jain3 patents · 0 citations
- 238Nicholas Joseph Kray3 patents · 0 citations
- 244Seung Woo Lee3 patents · 0 citations
- 251Vincent Savaria3 patents · 0 citations
Active· last 5 yrs
Sustained F05C output across the last 5 years
- 199Robert Bohmer6 patents · 32 citations
- 296Peter Thomas Cariveau7 patents · 32 citations
- 392Warran Boyd Lineton12 patents · 22 citations
- 488Rainer Scharp7 patents · 15 citations
- 583Paul M. Najt7 patents · 19 citations
- 679Byeongchul Lee11 patents · 16 citations
- 775Balakrishnan Nair4 patents · 26 citations
- 871Kyle Maples5 patents · 11 citations
- 967Roger Palmer5 patents · 11 citations
- 1063Vladimir Muzichuk5 patents · 11 citations
- 1158David Gagnon-Martin3 patents · 18 citations
- 1254Russell P. Durrett6 patents · 10 citations
- 1350Ryan N. Ruzicka2 patents · 26 citations
- 1446Yasushi Sakamoto2 patents · 26 citations
- 1542Thomas J. Smith3 patents · 22 citations
- 1638Michael A. Potter5 patents · 9 citations
- 1733Johnny Vinski4 patents · 13 citations
- 1829Martin K Yates4 patents · 13 citations
- 1925Kazukiyo Teshima3 patents · 15 citations
- 2021Ronald J. Forni2 patents · 64 citations
- 2117Brian J. Pinkelman2 patents · 14 citations
- 2213Ryohei Tsuruta2 patents · 14 citations
- 238Umesh N. Gandhi2 patents · 14 citations
- 244Roland Ennsmann2 patents · 26 citations
- 251James Brent Klassen2 patents · 14 citations
All-time canon
Career PatentIndex Score in F05C
- 199Ronald E. Pelrine23 patents · 6,790 citations
- 296Roy D. Kornbluh22 patents · 6,758 citations
- 392Qibing Pei14 patents · 3,622 citations
- 488Joseph S. Eckerle9 patents · 1,667 citations
- 583Jose P. Joseph7 patents · 2,439 citations
- 679Clark C. Davis13 patents · 880 citations
- 775Stephen C. Jacobsen13 patents · 880 citations
- 871Benjamin M. Rush23 patents · 1,258 citations
- 967Christopher V. Reggiardo17 patents · 1,080 citations
- 1063Jerome H. Lemelson12 patents · 1,306 citations
- 1158Harold C. Scott7 patents · 777 citations
- 1254William J. Anderson7 patents · 777 citations
- 1350Seajin Oh5 patents · 648 citations
- 1446Robert W. Allington28 patents · 1,205 citations
- 1542Daniel G. Jameson27 patents · 1,184 citations
- 1638Yoossef Tehrani10 patents · 506 citations
- 1733Dale L. Clay20 patents · 849 citations
- 1829Robin R. Winter17 patents · 758 citations
- 1925Steven M. Wood7 patents · 572 citations
- 2021Dale A. Davison5 patents · 280 citations
- 2117Alois Wolfsgruber8 patents · 229 citations
- 2213Rudolf Tscherne7 patents · 203 citations
- 238Norbert Korenjak9 patents · 300 citations
- 244Jeremy D. Peter-Hoblyn5 patents · 446 citations
- 251Melvin Robert Jackson11 patents · 619 citations
Rising· last 2 yrs
The top-scoring F05C patents made public in the last 2 years
- 199US12104550B1✦ AIRotary engine with side housing having a side plate with a ceramic matrix composite core2 cites · 202476% earned
- 296US12123370B2✦ AIRotary engine shim design for floating side plates2 cites · 202476% earned
- 392US12297833B2✦ AIRubber compound with fiber reinforcement0 cites · 20240% earned
- 488US12421966B2Screw compressor with multi-layered coating of the rotor screws0 cites · 20240% earned
- 583US12239944B2Systems and methods related to fluid pumping0 cites · 20240% earned
- 679US12448968B2Low coefficient of expansion rotors for blowers0 cites · 20240% earned
- 775US12410728B2Hybrid composite components0 cites · 20240% earned
- 871US12152476B2Seal bag for seal of an electric submersible pump0 cites · 20240% earned
- 967US12152490B1Fretting resistant rotary engine housings0 cites · 20240% earned
- 1063US12312664B2Cam ring and plate module for vehicle vacuum pumps, and method of manufacturing the same0 cites · 20250% earned
- 1158US12228091B1Internal combustion engine0 cites · 20250% earned
- 1254US12535070B2Eccentric screw pump with weakening recesses in the power train0 cites · 20250% earned
- 1350US12448963B2Asymmetric gas bearing bushing for thermo-pump0 cites · 20240% earned
- 1446US12523202B2Liquid supply device0 cites · 20250% earned
- 1542US12416306B2Bearing block for a gear pump assembly0 cites · 20250% earned
- 1638US12435679B2Embedded piston structures0 cites · 20240% earned
- 1733US12421912B2Rotary engine with seal having elastomeric member and shield0 cites · 20240% earned
- 1829US12392037B2Floating tooling assembly for chemical vapor infiltration0 cites · 20240% earned
- 1925US12291991B1Housing assembly for rotary engine0 cites · 20250% earned
- 2021US12247617B2Cavitation resistant journal bearing0 cites · 20240% earned
- 2117US12098720B2Compressor with two rotors coaxially disposed on a connecting assembly sleeved on the shaf0 cites · 20240% earned
- 2213US12584484B2Electric liquid pump0 cites · 20250% earned
- 238US12313071B1Gear pump with suction housing element providing a tight seal between suction and high-pre0 cites · 20250% earned
- 244US12410792B2Uniaxial eccentric screw pump0 cites · 20250% earned
- 251US12228135B2Refrigeration cycle apparatus0 cites · 20240% earned
Active· last 5 yrs
The top-scoring F05C patents of the last 5 years
- 199US11306706B2✦ AIShape memory alloy actuators and methods thereof14 cites · 202183% earned
- 296US11603828B2✦ AIOverstress protection for shape memory alloy seat actuator7 cites · 202286% earned
- 392US11472325B1✦ AIActuator for a support system of a seat7 cites · 202286% earned
- 488US11746782B2Low coefficient of expansion rotors for blowers6 cites · 202174% earned
- 583US11885333B2Fiber-reinforced rubber compound useful in PDM stators4 cites · 202362% earned
- 679US11668304B2Low coefficient of expansion rotors for vacuum boosters5 cites · 202172% earned
- 775US12104550B1Rotary engine with side housing having a side plate with a ceramic matrix composite core2 cites · 202476% earned
- 871US11549507B2Hypotrochoid positive-displacement machine5 cites · 202284% earned
- 967US12031537B2Screw compressor with multi-layered coating of the rotor screws2 cites · 202358% earned
- 1063US12123370B2Rotary engine shim design for floating side plates2 cites · 202476% earned
- 1158US11479002B2Compression tool and method of forming gas turbine engine components3 cites · 202172% earned
- 1254US11692546B2Compressor having damped scroll2 cites · 202267% earned
- 1350US11976569B2Fused filament fabrication of abradable coatings3 cites · 202180% earned
- 1446US11499548B2Gerotor pump and method for producing same4 cites · 202182% earned
- 1542US11754057B2Balanced pressure two-zone fluidic valve with shape memory alloy control element3 cites · 202280% earned
- 1638US11346332B2Piston ring and compressor3 cites · 202180% earned
- 1733US11480172B2Gear pump2 cites · 202176% earned
- 1829US11015549B1Cylinder block2 cites · 202176% earned
- 1925US11002220B1Cylinder block2 cites · 202176% earned
- 2021US11614158B2Hydraulic Gerotor pump for automatic transmission2 cites · 202276% earned
- 2117US12129850B2Screw rotor and method for manufacturing such screw rotor2 cites · 202276% earned
- 2213US11710623B2Vacuum pump protection against deposition byproduct buildup1 cites · 202150% earned
- 238US12025128B2Scroll pump with a plurality of bellows sealing a plurality of adjustment members1 cites · 202367% earned
- 244US11280202B2Balanced composite root region for a blade of a gas turbine engine1 cites · 202167% earned
- 251US11319894B2Insulated exhaust port liner for a cylinder head assembly of a motor vehicle1 cites · 202167% earned
All-time canon
The defining F05C patents of the whole record
- 199US6545384B1✦ AIElectroactive polymer devices1,768 cites · 200396% earned
- 296US6583533B2✦ AIElectroactive polymer electrodes1,629 cites · 200293% earned
- 392US6916159B2✦ AIDevice and method employing shape memory alloy601 cites · 200492% earned
- 488US5836750AElectrostatically actuated mesopump having a plurality of elementary cells569 cites · 199895% earned
- 583US6376971B1Electroactive polymer electrodes487 cites · 200292% earned
- 679US5588812AImplantable electric axial-flow blood pump396 cites · 199695% earned
- 775US6812624B1Electroactive polymers373 cites · 200483% earned
- 871US6768246B2Biologically powered electroactive polymer generators348 cites · 200194% earned
- 967US7052251B2Shape memory alloy wire driven positive displacement micropump with pulsatile output346 cites · 200389% earned
- 1063US5924975ALinear pump320 cites · 199994% earned
- 1158US5707218AImplantable electric axial-flow blood pump with blood cooled bearing312 cites · 199891% earned
- 1254US5186431APressure sensitive valves for extracorporeal circuits302 cites · 199391% earned
- 1350US5399074AMotor driven sealless blood pump299 cites · 199594% earned
- 1446US5941813ACardiac assist device290 cites · 199994% earned
- 1542US6106245ALow cost, high pumping rate electrostatically actuated mesopump267 cites · 200094% earned
- 1638US5807075ADisposable ambulatory microprocessor controlled volumetric pump259 cites · 199894% earned
- 1733US7064472B2Electroactive polymer devices for moving fluid242 cites · 200487% earned
- 1829US7034432B1Electroactive polymer generators237 cites · 200691% earned
- 1925US5626462ADouble-wall airfoil228 cites · 199794% earned
- 2021US5713730ACeramic pivot bearing arrangement for a sealless blood pump226 cites · 199894% earned
- 2117US6664718B2Monolithic electroactive polymers223 cites · 200194% earned
- 2213US4960643AComposite synthetic materials218 cites · 199091% earned
- 238US5625276AController for permanent magnet generator218 cites · 199794% earned
- 244US4805571AInternal combustion engine214 cites · 198994% earned
- 251US6628040B2Electroactive polymer thermal electric generators206 cites · 200191% earned
Rising· last 2 yrs
Assignees whose newest F05C patents became public in the last 2 years — the current frontier
- 199GEN ELECTRIC83 patents · 2,580 citations
- 296NISSAN MOTOR39 patents · 864 citations
- 392BRP ROTAX GMBH & CO KG7 patents · 154 citations
- 488SANDEN CORP21 patents · 272 citations
- 583TOYODA GOSEI KK7 patents · 164 citations
- 679DAIKIN IND LTD8 patents · 54 citations
- 775HYUNDAI MOTOR CO LTD13 patents · 64 citations
- 871ABACO DRILLING TECH LLC6 patents · 21 citations
- 967ROLLS ROYCE PLC7 patents · 53 citations
- 1063PRATT & WHITNEY CANADA8 patents · 20 citations
- 1158ATLAS COPCO AIRPOWER NV5 patents · 20 citations
- 1254HANON SYSTEMS5 patents · 9 citations
- 1350ILLINOIS TOOL WORKS2 patents · 89 citations
- 1446KAESER KOMPRESSOREN SE3 patents · 4 citations
- 1542HAMILTON SUNDSTRAND CORP6 patents · 5 citations
- 1638RAYTHEON TECH CORP4 patents · 3 citations
- 1733KOGANEI LTD2 patents · 5 citations
- 1829TRANE INT INC4 patents · 0 citations
- 1925HALLIBURTON ENERGY SERVICES INC3 patents · 0 citations
- 2021INDUSTRIAL TECH AND SERVICES LLC2 patents · 0 citations
- 2117PLAS TECH ENG INC2 patents · 0 citations
- 2213GAZIANO PHILIP FRANKLIN2 patents · 0 citations
- 238NETZSCH PUMPEN & SYSTEME GMBH2 patents · 0 citations
- 244EXERGYN LTD2 patents · 0 citations
- 251AIR LIQUIDE1 patents · 0 citations
Active· last 5 yrs
Sustained F05C output across the last 5 years
- 199GEN ELECTRIC83 patents · 2,580 citations
- 296UNITED TECHNOLOGIES CORP17 patents · 649 citations
- 392NISSAN MOTOR39 patents · 864 citations
- 488DENSO CORP29 patents · 462 citations
- 583CARRIER CORP15 patents · 325 citations
- 679MAZDA MOTOR27 patents · 317 citations
- 775KENNAMETAL INC6 patents · 155 citations
- 871BRP ROTAX GMBH & CO KG7 patents · 154 citations
- 967SCHLUMBERGER TECHNOLOGY CORP8 patents · 264 citations
- 1063SANDEN CORP21 patents · 272 citations
- 1158DANFOSS AS24 patents · 363 citations
- 1254MITSUBISHI ELECTRIC CORP11 patents · 180 citations
- 1350EMERSON CLIMATE TECHNOLOGIES19 patents · 151 citations
- 1446TOYODA GOSEI KK7 patents · 164 citations
- 1542FORD GLOBAL TECH LLC30 patents · 81 citations
- 1638KYOCERA CORP4 patents · 525 citations
- 1733DAIKIN IND LTD8 patents · 54 citations
- 1829HYUNDAI MOTOR CO LTD13 patents · 64 citations
- 1925ABACO DRILLING TECH LLC6 patents · 21 citations
- 2021ROLLS ROYCE PLC7 patents · 53 citations
- 2117MAHLE INT GMBH16 patents · 33 citations
- 2213LG ELECTRONICS INC29 patents · 39 citations
- 238GM GLOBAL TECH OPERATIONS LLC13 patents · 20 citations
- 244PRATT & WHITNEY CANADA8 patents · 20 citations
- 251SAUDI ARABIAN OIL CO5 patents · 15 citations
All-time canon
All-time PatentIndex Score in F05C
- 199STANFORD RES INST INT21 patents · 6,728 citations
- 296LEMELSON JEROME H9 patents · 1,006 citations
- 392RUSH BENJAMIN M7 patents · 259 citations
- 488GEN ELECTRIC83 patents · 2,580 citations
- 583COLEMAN POWERMATE INC7 patents · 777 citations
- 679ISCO INC30 patents · 1,275 citations
- 775SARCOS GROUP8 patents · 361 citations
- 871GEN MOTORS CORP38 patents · 1,613 citations
- 967HITACHI LTD71 patents · 1,867 citations
- 1063BOMBARDIER ROTAX GMBH8 patents · 282 citations
- 1158FORD MOTOR CO59 patents · 2,062 citations
- 1254ABBOTT DIABETES CARE INC15 patents · 398 citations
- 1350HONDA MOTOR CO LTD76 patents · 1,876 citations
- 1446UNITED TECHNOLOGIES CORP17 patents · 649 citations
- 1542NU PIPE INC9 patents · 422 citations
- 1638NIPPON DENSO CO16 patents · 616 citations
- 1733CATERPILLAR INC42 patents · 1,088 citations
- 1829NGK INSULATORS LTD31 patents · 862 citations
- 1925FORD GLOBAL TECH INC16 patents · 666 citations
- 2021NISSAN MOTOR39 patents · 864 citations
- 2117MAHLE GMBH48 patents · 936 citations
- 2213AE PLC24 patents · 676 citations
- 238CUMMINS ENGINE CO INC20 patents · 648 citations
- 244TECUMSEH PRODUCTS CO21 patents · 499 citations
- 251SIEMENS CANADA LTD16 patents · 485 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth