Topic leaderboard
Pistons, cylinders, pressure vessels & sealings
Ranked by the PatentIndex Score — a 1–99 percentile within F16J · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F16J patents became public in the last 2 years — the current frontier
- 199Lannie L. Dietle35 patents · 1,655 citations
- 296Henri V. Azibert39 patents · 877 citations
- 392Kelcy Jake Foster28 patents · 239 citations
- 488Mark S. Nowell21 patents · 230 citations
- 583Christopher Todd Barnett27 patents · 229 citations
- 679Guy J. Lapointe16 patents · 217 citations
- 775Michael Eugene May15 patents · 207 citations
- 871Brandon Scott Ayres13 patents · 202 citations
- 967Rahul Anil Bidkar22 patents · 410 citations
- 1063Yuichiro Tokunaga77 patents · 850 citations
- 1158Yuta Negishi38 patents · 376 citations
- 1254Chance Ray Mullins8 patents · 179 citations
- 1350Martin John Affentranger, Jr.8 patents · 117 citations
- 1446Alagarsamy Sundararajan7 patents · 118 citations
- 1542Jeff Busby30 patents · 228 citations
- 1638Micheal Cole Thomas25 patents · 159 citations
- 1733Paul M. Lutjen32 patents · 273 citations
- 1829Shin Nishimoto37 patents · 236 citations
- 1925Norbert Feistel22 patents · 260 citations
- 2021Kyle Matthew Ellisor7 patents · 143 citations
- 2117Philippe Coenegracht13 patents · 91 citations
- 2213Maddy Nadine Frederickx11 patents · 78 citations
- 238Steven Zachary Newberg5 patents · 119 citations
- 244Kim Ngoc Vu17 patents · 121 citations
- 251Toshikazu Yabe9 patents · 117 citations
Active· last 5 yrs
Sustained F16J output across the last 5 years
- 199Geoffrey A. Kruse10 patents · 688 citations
- 296Lannie L. Dietle35 patents · 1,655 citations
- 392Paul M. Diperna8 patents · 363 citations
- 488Thomas R. Ulrich8 patents · 363 citations
- 583Christopher Edward Wolfe48 patents · 1,911 citations
- 679Mahmut Faruk Aksit43 patents · 1,400 citations
- 775James R. Wasser11 patents · 385 citations
- 871Peter Sturt Lynn10 patents · 229 citations
- 967Saul Griffith9 patents · 211 citations
- 1063Henri V. Azibert39 patents · 877 citations
- 1158Glenn M. Garrison35 patents · 430 citations
- 1254Kelcy Jake Foster28 patents · 239 citations
- 1350Mark S. Nowell21 patents · 230 citations
- 1446Christopher Todd Barnett27 patents · 229 citations
- 1542Guy J. Lapointe16 patents · 217 citations
- 1638Michael Eugene May15 patents · 207 citations
- 1733Brandon Scott Ayres13 patents · 202 citations
- 1829Hideyuki Inoue63 patents · 892 citations
- 1925Rahul Anil Bidkar22 patents · 410 citations
- 2021Yuichiro Tokunaga77 patents · 850 citations
- 2117Tetsuya Iguchi19 patents · 363 citations
- 2213Masatoshi Itadani48 patents · 660 citations
- 238Douglas J. Volden6 patents · 282 citations
- 244Takeshi Hosoe46 patents · 576 citations
- 251Yuta Negishi38 patents · 376 citations
All-time canon
Career PatentIndex Score in F16J
- 199Michael Michaud6 patents · 700 citations
- 296Geoffrey A. Kruse10 patents · 688 citations
- 392Peter J. Balsells42 patents · 4,124 citations
- 488Robert Harold Cromer26 patents · 1,830 citations
- 583Osman Saim Dinc39 patents · 2,297 citations
- 679Bharat S. Bagepalli14 patents · 1,338 citations
- 775Lannie L. Dietle35 patents · 1,655 citations
- 871Manmohan S. Kalsi16 patents · 1,386 citations
- 967Paul M. Diperna8 patents · 363 citations
- 1063Thomas R. Ulrich8 patents · 363 citations
- 1158Norman Arnold Turnquist64 patents · 2,890 citations
- 1254Christopher Edward Wolfe48 patents · 1,911 citations
- 1350Adam N. Pope8 patents · 737 citations
- 1446David Robert Skinner13 patents · 800 citations
- 1542Russell D. Ide7 patents · 579 citations
- 1638James R. Maynard5 patents · 454 citations
- 1733Josef Sedy14 patents · 836 citations
- 1829Kurt Stoll25 patents · 1,640 citations
- 1925Ralph F. J. Flower6 patents · 602 citations
- 2021Mahmut Faruk Aksit43 patents · 1,400 citations
- 2117John F. Justak8 patents · 667 citations
- 2213David C. Orlowski34 patents · 1,700 citations
- 238Jeffrey D. Gobeli9 patents · 517 citations
- 244Izhak Etsion8 patents · 343 citations
- 251James F. Gardner8 patents · 499 citations
Rising· last 2 yrs
The top-scoring F16J patents made public in the last 2 years
- 199US12404931B2✦ AIDual ring stuffing box5 cites · 202477% earned
- 296US12377639B2✦ AIVacuum insulated panel with seal material thermal diffusivity and/or conductivity6 cites · 202457% earned
- 392US12345332B2✦ AISelf-locking plug5 cites · 202472% earned
- 488US12352356B2Fluid end with clamped retention3 cites · 202472% earned
- 583US12305788B2Stent spring for pipe repair device3 cites · 202463% earned
- 679US12297827B2Fluid end with clamped retention2 cites · 202467% earned
- 775US12234733B1Seal flow bypass3 cites · 202580% earned
- 871US12510082B1Impeller rotor seal runner with divergent guide surface2 cites · 202576% earned
- 967US12104697B2Compression sealing gasket and sealing system3 cites · 202480% earned
- 1063US12196323B2Sealing mechanism2 cites · 202467% earned
- 1158US12264742B2Non-contact seal with seal device axial locator(s)2 cites · 202476% earned
- 1254US12116896B1Seal support assembly for a turbine engine2 cites · 202476% earned
- 1350US12104459B2Seal for repeatedly switchable stepless fracturing sliding sleeve2 cites · 202476% earned
- 1446US12152491B1Ribbed seal element for aircraft powerplant1 cites · 202467% earned
- 1542US12162455B2Rotary damper, and brake system2 cites · 202476% earned
- 1638US11982187B1Blade outer air seal with angle-oriented ply layup for CMC compound radii2 cites · 202476% earned
- 1733US11867064B1Seal assembly for aircraft engine2 cites · 202476% earned
- 1829US12203553B1Wear-resistant and low-friction coated piston ring and preparation method therefor1 cites · 202567% earned
- 1925US12188561B2High pressure offset seal2 cites · 202476% earned
- 2021US12203551B1Wheel seal2 cites · 202576% earned
- 2117US12085087B1Waterless gland assembly for rotating equipment2 cites · 202467% earned
- 2213US12055218B2Ultra-seal gasket for joining high purity fluid pathways1 cites · 202437% earned
- 238US12538942B2Vaporizer system including vaporizer cartridge1 cites · 202436% earned
- 244US12206355B2Single-piece hinged clamp for track mounting assemblies1 cites · 202439% earned
- 251US11953095B1Flexible seal assembly1 cites · 202446% earned
Active· last 5 yrs
The top-scoring F16J patents of the last 5 years
- 199US11391374B1✦ AIDual ring stuffing box49 cites · 202292% earned
- 296US11421679B1✦ AIPacking assembly with threaded sleeve for interaction with an installation tool42 cites · 202284% earned
- 392US11463040B2✦ AISingle-piece hinged clamp for track mounting assemblies41 cites · 202177% earned
- 488US11746906B1Lip seals and related methods22 cites · 202390% earned
- 583US11624292B2Feather seal for CMC BOAS17 cites · 202284% earned
- 679US12055221B2Dual ring stuffing box17 cites · 202284% earned
- 775US11499444B1Turbine shroud assembly with forward and aft pin shroud attachment21 cites · 202282% earned
- 871US11515831B2Mount assemblies with chemical flashings25 cites · 202190% earned
- 967US11846356B1Self-locking plug19 cites · 202381% earned
- 1063US11092241B1Magnetic fluid sealing device19 cites · 202190% earned
- 1158US11434901B2Fluid end18 cites · 202184% earned
- 1254US12038086B2Moveable seal point packing system19 cites · 202290% earned
- 1350US11643939B2Seals and methods of making seals18 cites · 202284% earned
- 1446US11248706B2Sliding member23 cites · 202190% earned
- 1542US11320052B2Sliding components20 cites · 202185% earned
- 1638US11549594B2Gate valve13 cites · 202172% earned
- 1733US11092244B1Sealing disc for vacuum closure15 cites · 202189% earned
- 1829US11248480B2Intersegment seal for CMC boas assembly17 cites · 202189% earned
- 1925US11221071B2Sliding component19 cites · 202190% earned
- 2021US12247557B2Sealing assembly with repositionable seal9 cites · 202381% earned
- 2117US11761376B1Side plate for rotary engine9 cites · 202387% earned
- 2213US11572949B1Skin constrained inflatable bellows9 cites · 202387% earned
- 238US11187323B2Unitizing gasket and methods of use13 cites · 202188% earned
- 244US11125337B1Housing for magnetic fluid sealing device and agitation kettle/reaction kettle13 cites · 202188% earned
- 251US11530749B2Seal ring15 cites · 202189% earned
All-time canon
The defining F16J patents of the whole record
- 199US5080556A✦ AIThermal seal for a gas turbine spacer disc1,607 cites · 199296% earned
- 296US9216062B2✦ AISeals and sealing methods for a surgical instrument having an articulated end effector act1,573 cites · 201291% earned
- 392US4896584A✦ AIPiston-cylinder assembly1,092 cites · 199095% earned
- 488US4957212ANon-circular piston rings1,037 cites · 199095% earned
- 583US9775678B2Surgical instrument arrangement and drive train arrangement for a surgical instrument, in 725 cites · 201588% earned
- 679US4718637AHigh vacuum gate valve having improved metal vacuum joint554 cites · 198895% earned
- 775US4927407ACardiac assist pump with steady rate supply of fluid lubricant533 cites · 199095% earned
- 871US5137286APermanent magnet floating shaft seal521 cites · 199295% earned
- 967US3955859ABearing with multiple lip seal434 cites · 197695% earned
- 1063US5127626AApparatus for sealing around members extending therethrough412 cites · 199295% earned
- 1158US5360417AValve assembly for introducing instruments into body cavities332 cites · 199489% earned
- 1254US5317952ATentacle-like manipulators with adjustable tension lines293 cites · 199494% earned
- 1350US4494759ASeal for relatively rotatable parts285 cites · 198594% earned
- 1446US4655462ACanted coiled spring and seal283 cites · 198794% earned
- 1542US8287495B2Infusion pump system with disposable cartridge having pressure venting and pressure feedba264 cites · 201280% earned
- 1638US4541638AEmergency shaft seal device by deformation of packing ring255 cites · 198594% earned
- 1733US6768979B1Apparatus and method for noise attenuation in a speech recognition system240 cites · 200494% earned
- 1829US10842897B2Disinfecting articles with ozone231 cites · 201894% earned
- 1925US5921314AConditioned seat230 cites · 199994% earned
- 2021US5799953ACapped spring-energized seal224 cites · 199894% earned
- 2117US5902762AFlexible graphite composite221 cites · 199991% earned
- 2213US4127168AWell packers using metal to metal seals211 cites · 197894% earned
- 238US4424865AThermally energized packer cup211 cites · 198494% earned
- 244US4288082AWell sealing system209 cites · 198194% earned
- 251US4298204ASeal205 cites · 198194% earned
Rising· last 2 yrs
Assignees whose newest F16J patents became public in the last 2 years — the current frontier
- 199GEN ELECTRIC386 patents · 13,835 citations
- 296KALSI ENG INC27 patents · 1,630 citations
- 392GORE & ASS24 patents · 1,245 citations
- 488STEIN SEAL CO40 patents · 1,021 citations
- 583PARKER HANNIFIN CORP81 patents · 2,387 citations
- 679PRATT & WHITNEY CANADA62 patents · 599 citations
- 775ISHIKAWA GASKET218 patents · 3,873 citations
- 871NTN TOYO BEARING CO LTD92 patents · 1,138 citations
- 967NOK CORP365 patents · 3,011 citations
- 1063CHESTERTON A W CO75 patents · 1,679 citations
- 1158MITSUBISHI HEAVY IND LTD68 patents · 1,170 citations
- 1254CATERPILLAR INC166 patents · 1,880 citations
- 1350UTEX IND INC23 patents · 710 citations
- 1446EAGLE IND CO LTD272 patents · 2,514 citations
- 1542TOYOTA MOTOR CO LTD95 patents · 1,060 citations
- 1638NSK LTD54 patents · 602 citations
- 1733KERR MACHINE CO31 patents · 239 citations
- 1829HONEYWELL INT INC45 patents · 580 citations
- 1925OILES INDUSTRY CO LTD29 patents · 523 citations
- 2021HONDA MOTOR CO LTD109 patents · 1,175 citations
- 2117KAWASAKI HEAVY IND LTD23 patents · 302 citations
- 2213MITSUBISHI ELECTRIC CORP25 patents · 346 citations
- 238NIPPON PISTON RING CO LTD72 patents · 793 citations
- 244BOEING CO78 patents · 404 citations
- 251SUNRUN INC8 patents · 117 citations
Active· last 5 yrs
Sustained F16J output across the last 5 years
- 199GEN ELECTRIC386 patents · 13,835 citations
- 296KALSI ENG INC27 patents · 1,630 citations
- 392UNITED TECHNOLOGIES CORP443 patents · 5,393 citations
- 488GORE & ASS24 patents · 1,245 citations
- 583STEIN SEAL CO40 patents · 1,021 citations
- 679ROLLS ROYCE PLC88 patents · 1,832 citations
- 775PARKER HANNIFIN CORP81 patents · 2,387 citations
- 871CRANE JOHN INC55 patents · 2,203 citations
- 967NIPPON PILLAR PACKING92 patents · 1,982 citations
- 1063PRATT & WHITNEY CANADA62 patents · 599 citations
- 1158ISHIKAWA GASKET218 patents · 3,873 citations
- 1254NTN TOYO BEARING CO LTD92 patents · 1,138 citations
- 1350NOK CORP365 patents · 3,011 citations
- 1446CHESTERTON A W CO75 patents · 1,679 citations
- 1542MITSUBISHI HEAVY IND LTD68 patents · 1,170 citations
- 1638FLOWSERVE MAN CO38 patents · 622 citations
- 1733CATERPILLAR INC166 patents · 1,880 citations
- 1829UTEX IND INC23 patents · 710 citations
- 1925EAGLE IND CO LTD272 patents · 2,514 citations
- 2021MITSUBISHI CABLE IND LTD27 patents · 466 citations
- 2117TOYOTA MOTOR CO LTD95 patents · 1,060 citations
- 2213NISSAN MOTOR47 patents · 792 citations
- 238CRANE JOHN UK LTD32 patents · 431 citations
- 244NSK LTD54 patents · 602 citations
- 251KERR MACHINE CO31 patents · 239 citations
All-time canon
All-time PatentIndex Score in F16J
- 199GEN ELECTRIC386 patents · 13,835 citations
- 296BAL SEAL ENG CO INC11 patents · 1,172 citations
- 392BALSELLS PETER J26 patents · 2,928 citations
- 488KALSI ENG INC27 patents · 1,630 citations
- 583UNITED TECHNOLOGIES CORP443 patents · 5,393 citations
- 679GORE & ASS24 patents · 1,245 citations
- 775STEIN SEAL CO40 patents · 1,021 citations
- 871ROLLS ROYCE PLC88 patents · 1,832 citations
- 967DURAMETALLIC CORP30 patents · 1,331 citations
- 1063PARKER HANNIFIN CORP81 patents · 2,387 citations
- 1158ALLIED SIGNAL INC27 patents · 1,449 citations
- 1254CRANE JOHN INC55 patents · 2,203 citations
- 1350CROSS MFG CO6 patents · 602 citations
- 1446NIPPON PILLAR PACKING92 patents · 1,982 citations
- 1542SMITH INTERNATIONAL34 patents · 1,381 citations
- 1638JUSTAK JOHN F7 patents · 586 citations
- 1733DANA CORP170 patents · 4,426 citations
- 1829SEALOL30 patents · 1,316 citations
- 1925SURFACE TECHNOLOGIES LTD5 patents · 324 citations
- 2021FEL PRO INC44 patents · 1,442 citations
- 2117UCAR CARBON TECH12 patents · 649 citations
- 2213NASA34 patents · 1,176 citations
- 238OTIS ENG CO12 patents · 757 citations
- 244FISHER CONTROLS INT29 patents · 723 citations
- 251PRATT & WHITNEY CANADA62 patents · 599 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth