Topic leaderboard
Controlling combustion engines
Ranked by the PatentIndex Score — a 1–99 percentile within F02D · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F02D patents became public in the last 2 years — the current frontier
- 199Axel O. Zur Loye44 patents · 2,195 citations
- 296Leslie Bromberg75 patents · 1,445 citations
- 392Daniel R. Cohn72 patents · 1,409 citations
- 488Shinichi Takeshima21 patents · 2,086 citations
- 583Michiel J. Van Nieuwstadt135 patents · 2,629 citations
- 679Louis J. Serrano82 patents · 1,251 citations
- 775Thomas G. Leone201 patents · 3,384 citations
- 871Atsushi Tabata51 patents · 1,071 citations
- 967Mamoru Yoshioka80 patents · 1,251 citations
- 1063Eric D. Thomas15 patents · 621 citations
- 1158Donald J. Benson26 patents · 551 citations
- 1254Hong Zhang141 patents · 1,954 citations
- 1350Jeffrey M. Kaiser45 patents · 873 citations
- 1446Paul Joseph Tennison28 patents · 516 citations
- 1542Michael W. Walser17 patents · 404 citations
- 1638Christopher Paul Glugla43 patents · 545 citations
- 1733Yoshihiro Sukegawa40 patents · 554 citations
- 1829Akihiro Katayama74 patents · 563 citations
- 1925James E. Mccarthy, Jr.50 patents · 519 citations
- 2021Sandeep Munshi18 patents · 380 citations
- 2117Magdi Khair16 patents · 316 citations
- 2213Hirofumi Tsuchida25 patents · 403 citations
- 238Toshio Inoue29 patents · 505 citations
- 244Brian R. Gillingham11 patents · 169 citations
- 251Michael J Prucka15 patents · 307 citations
Active· last 5 yrs
Sustained F02D output across the last 5 years
- 199Christopher J. Hess19 patents · 27,144 citations
- 296William B. Weisenburgh, Ii19 patents · 27,144 citations
- 392Carl J. Shurtleff6 patents · 5,390 citations
- 488Axel O. Zur Loye44 patents · 2,195 citations
- 583Adya S. Tripathi30 patents · 2,089 citations
- 679Leslie Bromberg75 patents · 1,445 citations
- 775Daniel R. Cohn72 patents · 1,409 citations
- 871John B. Heywood46 patents · 1,245 citations
- 967Shinichi Takeshima21 patents · 2,086 citations
- 1063Gopichandra Surnilla456 patents · 6,517 citations
- 1158Michiel J. Van Nieuwstadt135 patents · 2,629 citations
- 1254Michael M. Schechter20 patents · 1,261 citations
- 1350Louis J. Serrano82 patents · 1,251 citations
- 1446Thomas G. Leone201 patents · 3,384 citations
- 1542Mohammad R. Pirjaberi30 patents · 758 citations
- 1638Atsushi Tabata51 patents · 1,071 citations
- 1733Steven M. Bellinger20 patents · 994 citations
- 1829Tomonori Urushihara37 patents · 840 citations
- 1925Yue Wang83 patents · 1,716 citations
- 2021Makoto Ogiso24 patents · 735 citations
- 2117Taner Tuken16 patents · 638 citations
- 2213Akira Kato45 patents · 1,048 citations
- 238Jeffrey Allen Doering146 patents · 1,731 citations
- 244Mamoru Yoshioka80 patents · 1,251 citations
- 251David Karl Bidner101 patents · 1,883 citations
All-time canon
Career PatentIndex Score in F02D
- 199Christopher J. Hess19 patents · 27,144 citations
- 296William B. Weisenburgh, Ii19 patents · 27,144 citations
- 392Carl J. Shurtleff6 patents · 5,390 citations
- 488Alex J. Severinsky15 patents · 2,183 citations
- 583Theodore Louckes14 patents · 1,686 citations
- 679Robert J. Weinberg9 patents · 1,621 citations
- 775Thomas A. Fowles9 patents · 1,621 citations
- 871Thomas J. Progar9 patents · 1,621 citations
- 967Craig A. Fuller7 patents · 1,188 citations
- 1063Axel O. Zur Loye44 patents · 2,195 citations
- 1158John F. Wright15 patents · 1,792 citations
- 1254Greg Moore8 patents · 1,249 citations
- 1350Julie A. Wagner5 patents · 1,216 citations
- 1446Adya S. Tripathi30 patents · 2,089 citations
- 1542Lester L. Peters26 patents · 1,587 citations
- 1638Patrick M. Pierz11 patents · 1,074 citations
- 1733Chester J. Silvestri19 patents · 1,504 citations
- 1829Toshiaki Tanaka55 patents · 3,157 citations
- 1925Shinya Hirota52 patents · 2,499 citations
- 2021Leslie Bromberg75 patents · 1,445 citations
- 2117Daniel R. Cohn72 patents · 1,409 citations
- 2213John B. Heywood46 patents · 1,245 citations
- 238Gary L. Hunter10 patents · 1,132 citations
- 244S. Miller Weisman, Ii15 patents · 1,131 citations
- 251Shinichi Takeshima21 patents · 2,086 citations
Rising· last 2 yrs
The top-scoring F02D patents made public in the last 2 years
- 199US12134990B2✦ AISystem for remotely monitoring and controlling operation of a hydro-diesel engine6 cites · 202478% earned
- 296US12297795B1✦ AIMulti-function fuel injector valve in dual fuel system and fuel system operating method5 cites · 202584% earned
- 392US12326127B2✦ AIMulti-fuel injector with fuel mixing4 cites · 202582% earned
- 488US12092063B2Predictive model-based spark control3 cites · 202472% earned
- 583US11879420B1System and method for controlling ignition coil3 cites · 202480% earned
- 679US12085032B2Controller and control method for engine2 cites · 202476% earned
- 775US12037956B1Engine control systems and methods for starting an engine2 cites · 202467% earned
- 871US12085034B2Vehicle control device2 cites · 202476% earned
- 967US11885259B1Ammonia-hydrogen blended fuel control system based on reactivity regulation2 cites · 202476% earned
- 1063US11913401B1Engine emission control systems for deceleration fuel cutoff events and cold starts2 cites · 202476% earned
- 1158US12006882B1Rotary engine with dual-fuel injectors2 cites · 202476% earned
- 1254US12441295B2System and methods for in-use NOx robustness emission control2 cites · 202476% earned
- 1350US11867141B1Ethanol detection with heated fuel injector in flexible fuel vehicles2 cites · 202476% earned
- 1446US12049852B1Heterogeneous fuel injector driver topologies2 cites · 202476% earned
- 1542US12124954B1Intelligent control with hierarchical stacked neural networks2 cites · 202458% earned
- 1638US12003133B1Variable voltage charging system and method for a vehicle2 cites · 202461% earned
- 1733US12188341B2Transmission shaft brake for engine auto restart1 cites · 202450% earned
- 1829US11873772B1Dual fuel engine system and method for controlling dual fuel engine system2 cites · 202467% earned
- 1925US11988161B2Systems and methods for providing redundant pulse-width modulation (PWM) throttle control2 cites · 202467% earned
- 2021US12404818B2Apparatus and method for injecting a pilot fuel into an internal combustion engine2 cites · 202467% earned
- 2117US12152517B2Systems and methods for compensating NOx sensor measurements to meet sufficiency requireme2 cites · 202467% earned
- 2213US12085050B2Switching fuel rail for a diesel fuel engine2 cites · 202476% earned
- 238US12503193B1Motorcycle throttle housing and cam assembly1 cites · 202567% earned
- 244US12480453B2Ammonia-rich combustion coupled dual-mode prechamber ammonia-fueled engine control system1 cites · 202567% earned
- 251US12060825B1Two-stage turbocharging energy-efficient self-adaptive control method based on multi-point1 cites · 202467% earned
Active· last 5 yrs
The top-scoring F02D patents of the last 5 years
- 199US11015536B2✦ AIMethods and systems for supplying fuel to gas turbine engines83 cites · 202189% earned
- 296US11624326B2✦ AIMethods and systems for supplying fuel to gas turbine engines50 cites · 202192% earned
- 392US11130422B1✦ AIHybrid battery management system40 cites · 202187% earned
- 488US11598282B1Systems and methods for optimizing vessel fuel consumption16 cites · 202389% earned
- 583US11060443B1Systems and methods for increasing oxygen levels in an active pre-chamber22 cites · 202190% earned
- 679US11193438B1Emissions control during engine cold starts17 cites · 202189% earned
- 775US11384721B1Dual fuel system having dual fuel injector and engine operating method15 cites · 202276% earned
- 871US11598269B1Air intake plenum for attenuating sound from a marine engine12 cites · 202382% earned
- 967US12134990B2System for remotely monitoring and controlling operation of a hydro-diesel engine6 cites · 202478% earned
- 1063US11149662B2Zero emission propulsion systems and generator sets using ammonia as fuel24 cites · 202185% earned
- 1158US11156198B1Systems and methods for ignition coil multiplexing in a pre-chamber system18 cites · 202189% earned
- 1254US11428186B2Fuel agnostic compression ignition engine13 cites · 202275% earned
- 1350US11598276B1Methods and systems for multi-fuel engine13 cites · 202388% earned
- 1446US10947948B1Systems and methods for ignition coil multiplexing in a pre-chamber system15 cites · 202183% earned
- 1542US12297795B1Multi-function fuel injector valve in dual fuel system and fuel system operating method5 cites · 202584% earned
- 1638US11085402B1Methods and systems for operating an adjustable pre-chamber15 cites · 202189% earned
- 1733US11225242B1Hybrid vehicle control with rate-limited energy management torque14 cites · 202289% earned
- 1829US11448155B2Process for testing a plurality of components of an exhaust gas aftertreatment system14 cites · 202189% earned
- 1925US10981636B1Marine engines having a supercharger16 cites · 202189% earned
- 2021US11428133B2Systems and methods for managing catalyst temperature based on location11 cites · 202188% earned
- 2117US11333095B1Method and system for fuel system diagnostics13 cites · 202283% earned
- 2213US11078826B1Gaseous fuel engine and sparkless operating strategy therefor11 cites · 202188% earned
- 238US11092130B2Ignition timing control device for internal combustion engine11 cites · 202188% earned
- 244US11346308B1Methods and systems for diagnosing degradation in a pressure-less fuel tank9 cites · 202287% earned
- 251US11635046B1Method and systems for active air fuel ratio control9 cites · 202387% earned
All-time canon
The defining F02D patents of the whole record
- 199US7438209B1✦ AISurgical stapling instruments having a releasable staple-forming pocket2,472 cites · 200884% earned
- 296US7604151B2✦ AISurgical stapling systems and staple cartridges for deploying surgical staples with tissue2,425 cites · 200984% earned
- 392US8590762B2✦ AIStaple cartridge cavity configurations2,251 cites · 200984% earned
- 488US8186560B2Surgical stapling systems and staple cartridges for deploying surgical staples with tissue2,207 cites · 201084% earned
- 583US7669747B2Washer for use with a surgical stapling instrument2,165 cites · 200984% earned
- 679US7735703B2Re-loadable surgical stapling instrument2,134 cites · 200984% earned
- 775US7673782B2Surgical stapling instrument having a releasable buttress material2,113 cites · 200984% earned
- 871US8727197B2Staple cartridge cavity configuration with cooperative surgical staple1,843 cites · 200984% earned
- 967US8672208B2Surgical stapling instrument having a releasable buttress material1,752 cites · 201084% earned
- 1063US8668130B2Surgical stapling systems and staple cartridges for deploying surgical staples with tissue1,563 cites · 201283% earned
- 1158US8925788B2End effectors for surgical stapling instruments1,501 cites · 201483% earned
- 1254US8991676B2Surgical staple having a slidable crown1,471 cites · 200983% earned
- 1350US9289206B2Lateral securement members for surgical staple cartridges1,342 cites · 201583% earned
- 1446US9872682B2Surgical stapling instrument having a releasable buttress material1,110 cites · 201683% earned
- 1542US7635922B2Power control system and method979 cites · 200787% earned
- 1638US4617893ASpeed limiting system for a motor vehicle including a switch and a method for positioning 839 cites · 198695% earned
- 1733US4282573AProcessor interrupt device for an electronic engine control apparatus716 cites · 198195% earned
- 1829US6874480B1Flow meter590 cites · 200595% earned
- 1925US5386373AVirtual continuous emission monitoring system with sensor validation575 cites · 199592% earned
- 2021US10702267B2Surgical stapling instrument having a releasable buttress material564 cites · 201881% earned
- 2117US6647328B2Electrically controlled automated devices to control equipment and machinery with remote c511 cites · 200190% earned
- 2213US6209672B1Hybrid vehicle497 cites · 200195% earned
- 238US9015093B1Intelligent control with hierarchical stacked neural networks417 cites · 201588% earned
- 244US6554088B2Hybrid vehicles406 cites · 200180% earned
- 251US6276334B1Premixed charge compression ignition engine with optimal combustion control385 cites · 200195% earned
Rising· last 2 yrs
Assignees whose newest F02D patents became public in the last 2 years — the current frontier
- 199TOYOTA MOTOR CO LTD3,425 patents · 49,245 citations
- 296HITACHI LTD928 patents · 20,732 citations
- 392CUMMINS INC526 patents · 6,014 citations
- 488FORD GLOBAL TECH LLC3,152 patents · 30,102 citations
- 583NISSAN MOTOR1,583 patents · 33,322 citations
- 679CATERPILLAR INC888 patents · 15,438 citations
- 775HONDA MOTOR CO LTD1,814 patents · 27,336 citations
- 871MITSUBISHI MOTORS CORP328 patents · 8,163 citations
- 967BOSCH GMBH ROBERT2,340 patents · 31,915 citations
- 1063DENSO CORP1,313 patents · 15,602 citations
- 1158MAZDA MOTOR726 patents · 10,355 citations
- 1254ISUZU MOTORS LTD276 patents · 4,344 citations
- 1350SOUTHWEST RES INST84 patents · 2,118 citations
- 1446FIAT RICERCHE104 patents · 2,166 citations
- 1542YAMAHA MOTOR CO LTD387 patents · 7,096 citations
- 1638BORGWARNER INC79 patents · 1,240 citations
- 1733SIEMENS AG425 patents · 6,621 citations
- 1829BRUNSWICK CORP124 patents · 2,459 citations
- 1925DEERE & CO126 patents · 1,444 citations
- 2021KOMATSU MFG CO LTD125 patents · 1,755 citations
- 2117COHN DANIEL R8 patents · 130 citations
- 2213VOLKSWAGEN AG175 patents · 1,441 citations
- 238MITSUBISHI ELECTRIC CORP888 patents · 12,452 citations
- 244POLARIS INC49 patents · 458 citations
- 251MIKUNI KOGYO KK80 patents · 920 citations
Active· last 5 yrs
Sustained F02D output across the last 5 years
- 199TOYOTA MOTOR CO LTD3,425 patents · 49,245 citations
- 296TULA TECHNOLOGY INC157 patents · 2,858 citations
- 392HITACHI LTD928 patents · 20,732 citations
- 488CUMMINS INC526 patents · 6,014 citations
- 583FORD GLOBAL TECH LLC3,152 patents · 30,102 citations
- 679NISSAN MOTOR1,583 patents · 33,322 citations
- 775MASSACHUSETTS INST TECHNOLOGY42 patents · 1,001 citations
- 871CATERPILLAR INC888 patents · 15,438 citations
- 967HONDA MOTOR CO LTD1,814 patents · 27,336 citations
- 1063MITSUBISHI MOTORS CORP328 patents · 8,163 citations
- 1158BOSCH GMBH ROBERT2,340 patents · 31,915 citations
- 1254DENSO CORP1,313 patents · 15,602 citations
- 1350MAZDA MOTOR726 patents · 10,355 citations
- 1446UNIV CALIFORNIA11 patents · 866 citations
- 1542NGK INSULATORS LTD28 patents · 768 citations
- 1638ISUZU MOTORS LTD276 patents · 4,344 citations
- 1733SOUTHWEST RES INST84 patents · 2,118 citations
- 1829FIAT RICERCHE104 patents · 2,166 citations
- 1925YAMAHA MOTOR CO LTD387 patents · 7,096 citations
- 2021BORGWARNER INC79 patents · 1,240 citations
- 2117GEN ELECTRIC255 patents · 2,957 citations
- 2213SIEMENS AG425 patents · 6,621 citations
- 238BRUNSWICK CORP124 patents · 2,459 citations
- 244DEERE & CO126 patents · 1,444 citations
- 251KOMATSU MFG CO LTD125 patents · 1,755 citations
All-time canon
All-time PatentIndex Score in F02D
- 199ETHICON ENDO SURGERY INC7 patents · 14,152 citations
- 296HESS CHRISTOPHER J6 patents · 11,087 citations
- 392PAICE LLC8 patents · 1,016 citations
- 488BAXTER INT8 patents · 1,402 citations
- 583CUMMINS ENGINE CO INC154 patents · 8,171 citations
- 679TOYOTA MOTOR CO LTD3,425 patents · 49,245 citations
- 775TULA TECHNOLOGY INC157 patents · 2,858 citations
- 871HITACHI LTD928 patents · 20,732 citations
- 967CUMMINS INC526 patents · 6,014 citations
- 1063FORD GLOBAL TECH LLC3,152 patents · 30,102 citations
- 1158NISSAN MOTOR1,583 patents · 33,322 citations
- 1254FORD GLOBAL TECH INC442 patents · 17,871 citations
- 1350MASSACHUSETTS INST TECHNOLOGY42 patents · 1,001 citations
- 1446FORD MOTOR CO383 patents · 14,441 citations
- 1542CATERPILLAR INC888 patents · 15,438 citations
- 1638DETROIT DIESEL CORP132 patents · 4,357 citations
- 1733GEN MOTORS CORP529 patents · 17,115 citations
- 1829HONDA MOTOR CO LTD1,814 patents · 27,336 citations
- 1925MITSUBISHI MOTORS CORP328 patents · 8,163 citations
- 2021FUJI HEAVY IND LTD327 patents · 6,803 citations
- 2117BOSCH GMBH ROBERT2,340 patents · 31,915 citations
- 2213DAIMLER BENZ AG149 patents · 4,032 citations
- 238TRIPATHI ADYA S9 patents · 852 citations
- 244DELPHI TECH INC235 patents · 4,859 citations
- 251NIPPON DENSO CO466 patents · 13,519 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth