Topic leaderboard
Making forged or pressed products
Ranked by the PatentIndex Score — a 1–99 percentile within B21K · public-visibility date · generated 2026-07-19
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest B21K patents became public in the last 2 years — the current frontier
- 199Alan Hocknell22 patents · 4,791 citations
- 296Jeffrey P. Fugere7 patents · 47 citations
- 392James A. Seluga11 patents · 89 citations
- 488Matthew Myers11 patents · 89 citations
- 583Robert S. Gonczi11 patents · 89 citations
- 679Bart R. Fliers7 patents · 81 citations
- 775Matthew Hannen7 patents · 81 citations
- 871Nobuyuki Hagiwara31 patents · 69 citations
- 967Brian Swank5 patents · 129 citations
- 1063Christopher A. G. Nunez8 patents · 22 citations
- 1158Austin L. Frederickson4 patents · 14 citations
- 1254Evan D. Gibbs4 patents · 14 citations
- 1350Alex Power4 patents · 8 citations
- 1446Jeremy R. Hanhart4 patents · 8 citations
- 1542Justin Del Rosario4 patents · 8 citations
- 1638Kelsey Bazshushtari4 patents · 8 citations
- 1733Romulus M. Tomimbang4 patents · 8 citations
- 1829Timothy G. Scott4 patents · 8 citations
- 1925Kenneth A. Ross2 patents · 27 citations
- 2021Scott A. Whalen2 patents · 27 citations
- 2117Keisuke Kitamura2 patents · 7 citations
- 2213Laura Sguotti5 patents · 0 citations
- 238Thomas G. Klocker2 patents · 4 citations
- 244Benjamin Nichols2 patents · 2 citations
- 251John J. Meyer2 patents · 2 citations
Active· last 5 yrs
Sustained B21K output across the last 5 years
- 199Alan Hocknell22 patents · 4,791 citations
- 296Jonathan Hebreo15 patents · 320 citations
- 392Jeffrey P. Fugere7 patents · 47 citations
- 488James A. Seluga11 patents · 89 citations
- 583Matthew Myers11 patents · 89 citations
- 679Robert S. Gonczi11 patents · 89 citations
- 775Jacob A. Bayyouk10 patents · 47 citations
- 871Edward C. Kotapish7 patents · 39 citations
- 967Bart R. Fliers7 patents · 81 citations
- 1063Matthew Hannen7 patents · 81 citations
- 1158Gary Dilling10 patents · 75 citations
- 1254Marni D. Ines6 patents · 83 citations
- 1350Nobuyuki Hagiwara31 patents · 69 citations
- 1446Roger Young5 patents · 38 citations
- 1542Brian Swank5 patents · 129 citations
- 1638Christopher A. G. Nunez8 patents · 22 citations
- 1733Joseph H. Byrne5 patents · 17 citations
- 1829Hiroshi Shohara4 patents · 46 citations
- 1925Loren Bakko4 patents · 27 citations
- 2021Shujiro Inatani4 patents · 41 citations
- 2117John A. Pale7 patents · 20 citations
- 2213Daniel Deriaz5 patents · 30 citations
- 238Juan Valencia4 patents · 51 citations
- 244Shawn Rhodes4 patents · 51 citations
- 251Todd Skowron4 patents · 51 citations
All-time canon
Career PatentIndex Score in B21K
- 199Richard C. Helmstetter20 patents · 4,818 citations
- 296Alan Hocknell22 patents · 4,791 citations
- 392James M. Murphy6 patents · 2,093 citations
- 488Ronald C. Boyce8 patents · 1,845 citations
- 583Homer E. Aguinaldo8 patents · 1,671 citations
- 679D. Clayton Evans9 patents · 1,339 citations
- 775Herbert Reyes7 patents · 1,499 citations
- 871Sidney L. Findley5 patents · 527 citations
- 967Steven G. Keener14 patents · 453 citations
- 1063Hiroya Miyazaki7 patents · 228 citations
- 1158Hiroyuki Sawai8 patents · 229 citations
- 1254Takafumi Kuwano6 patents · 205 citations
- 1350Yoshihisa Ohnuki5 patents · 193 citations
- 1446Hisanobu Kanamaru27 patents · 590 citations
- 1542Bernard N. Spiegelberg6 patents · 270 citations
- 1638Paul A. Stone6 patents · 225 citations
- 1733Rickey J. Thomas6 patents · 225 citations
- 1829Kerry Boggs8 patents · 218 citations
- 1925Joseph A. Simon15 patents · 400 citations
- 2021Jonathan Hebreo15 patents · 320 citations
- 2117Bryant H. Walker8 patents · 336 citations
- 2213Gerald J. Julien5 patents · 256 citations
- 238Yoram Baron14 patents · 80 citations
- 244Kiyoshi Okubo21 patents · 264 citations
- 251John Vrana11 patents · 213 citations
Rising· last 2 yrs
The top-scoring B21K patents made public in the last 2 years
- 199US12226861B1✦ AIConstant rake fluted drill bit and method of manufacture2 cites · 202576% earned
- 296US12275058B1✦ AIDevices and methods for controllable forging of forming flow line of complex-shaped compon2 cites · 202576% earned
- 392US12017247B1✦ AIMaterial dispense tips2 cites · 202451% earned
- 488US12104508B1Large-size diesel exhaust valve and manufacturing method thereof1 cites · 202467% earned
- 583US12343604B2Method of manufacturing golf club head having stress-reducing features0 cites · 20240% earned
- 679US12102891B2Method of manufacturing golf club head having stress-reducing features0 cites · 20240% earned
- 775US12233449B2Front toothing on an inner ring of a wheel hub and associated equipment0 cites · 20240% earned
- 871US12263521B2Boron steel high-pressure cartridge case0 cites · 20240% earned
- 967US12252768B2Steel for gear and method for manufacturing gear using the same0 cites · 20240% earned
- 1063US12442626B2Two-part polymer ammunition casing0 cites · 20240% earned
- 1158US12509894B2Portable hot swaged coupling device for connecting articles0 cites · 20250% earned
- 1254US12459052B2Methods for friction stir welding involving dissimilar materials0 cites · 20240% earned
- 1350US12569902B2Method of manufacturing staking assembly, method of manufacturing hub unit bearing, stakin0 cites · 20250% earned
- 1446US12594652B2Rotary installation tools for clinch fasteners0 cites · 20240% earned
- 1542US11864693B1Blender blade formed of titanium or titanium alloy0 cites · 20240% earned
- 1638US12569908B2Process for producing blanks of rings0 cites · 20250% earned
- 1733US12472591B2Tight-fit riveting process for heat dissipation aluminum plate and heat pipe0 cites · 20250% earned
- 1829US12403526B2Crankshaft and method of manufacturing forged material for crankshaft0 cites · 20240% earned
- 1925US12427565B2Device and method for producing a spur toothing0 cites · 20250% earned
- 2021US12264903B2Ammunition cartridge0 cites · 20250% earned
- 2117US12233497B2Joining tool and tool gripper0 cites · 20240% earned
- 2213US12059720B2Joining tool unit0 cites · 20240% earned
- 238US12409487B2Method for manufacturing ring member for bearing, and mold for inversion working0 cites · 20250% earned
- 244US12409488B2Method for manufacturing bearing ring member0 cites · 20250% earned
- 251US12502705B2Device and method for continuously producing an at least partly hollow shaft having a vary0 cites · 20240% earned
Active· last 5 yrs
The top-scoring B21K patents of the last 5 years
- 199US11125540B2✦ AIPressed head38 cites · 202191% earned
- 296US11131397B2✦ AIElectric ball valve and manufacturing method therefor33 cites · 202191% earned
- 392US11292025B1✦ AIMaterial dispense tips and methods for manufacturing the same7 cites · 202267% earned
- 488US11536167B2Method for manufacturing engine poppet valve5 cites · 202184% earned
- 583US12226861B1Constant rake fluted drill bit and method of manufacture2 cites · 202576% earned
- 679US12275058B1Devices and methods for controllable forging of forming flow line of complex-shaped compon2 cites · 202576% earned
- 775US11065669B1Forward stroke pipe fitting swage machine systems and methods5 cites · 202177% earned
- 871US11433281B2Method of manufacturing golf club head having stress-reducing features4 cites · 202164% earned
- 967US11918867B2Co-forged golf club head and method of manufacture3 cites · 202272% earned
- 1063US12066279B2Polymer ammunition casing2 cites · 202367% earned
- 1158US11433282B2Method of manufacturing golf club head having stress-reducing features3 cites · 202163% earned
- 1254US11480170B2Support for reciprocating pump3 cites · 202172% earned
- 1350US12228158B2Stick fit fastener recess system3 cites · 202172% earned
- 1446US11813890B2Manufacturing apparatus for drive disk3 cites · 202280% earned
- 1542US11318525B1Method for manufacturing a golf club head made of soft iron3 cites · 202280% earned
- 1638US11879709B2Intermediate for manufacturing projectiles of a deformable bullet, projectile, deformed pr2 cites · 202367% earned
- 1733US11534640B1Pipe fitting incorporating a spherical spin weld3 cites · 202272% earned
- 1829US11883723B2Supported iron set2 cites · 202158% earned
- 1925US12384007B2Fastener system with stabilizer ribs2 cites · 202167% earned
- 2021US12049765B2Portable hot swaged coupling device for connecting articles2 cites · 202367% earned
- 2117US11648632B1Treatment process for a centrifugal compressor wheel to extend low-cycle fatigue life2 cites · 202376% earned
- 2213US11719269B2Corner bracket with reinforcing ribs2 cites · 202376% earned
- 238US10925438B1Blender blade formed of titanium or titanium alloy4 cites · 202175% earned
- 244US11079207B1Plated expanding bullet and method of manufacturing the bullet2 cites · 202176% earned
- 251US11618112B2Remanufactured pinion shaft and method of making2 cites · 202176% earned
All-time canon
The defining B21K patents of the whole record
- 199US6354962B1✦ AIGolf club head with a face composed of a forged material557 cites · 200290% earned
- 296US6491592B2✦ AIMultiple material golf club head495 cites · 200192% earned
- 392US6390933B1✦ AIHigh cofficient of restitution golf club head478 cites · 200295% earned
- 488US6471604B2Multiple material golf head455 cites · 200292% earned
- 583US6739983B2Golf club head with customizable center of gravity455 cites · 200392% earned
- 679US6368234B1Golf club striking plate having elliptical regions of thickness383 cites · 200294% earned
- 775US6575845B2Multiple material golf club head380 cites · 200292% earned
- 871US6582323B2Multiple material golf club head368 cites · 200294% earned
- 967US4084478AScrew heads257 cites · 197894% earned
- 1063US6398666B1Golf club striking plate with variable thickness252 cites · 200287% earned
- 1158US6381828B1Chemical etching of a striking plate for a golf club head228 cites · 200294% earned
- 1254US6073518ABit manufacturing method225 cites · 200091% earned
- 1350US6663504B2Multiple material golf club head208 cites · 200294% earned
- 1446US6021693AMethod of manufacturing blades for scissors200 cites · 200094% earned
- 1542US5896642ADie-formed amorphous metallic articles and their fabrication191 cites · 199994% earned
- 1638US6881159B2Multiple material golf club head187 cites · 200391% earned
- 1733US6926619B2Golf club head with customizable center of gravity187 cites · 200491% earned
- 1829US5411521AMedical suturing device, a single-strike die mechanism, and a method of using said die mec183 cites · 199590% earned
- 1925US6089123AStructure for use in drilling a subterranean formation172 cites · 200090% earned
- 2021US5488761AFlexible shaft and method for manufacturing same167 cites · 199694% earned
- 2117US7867105B2Forged iron head and golf club having the same162 cites · 200994% earned
- 2213US6435982B1Golf club head with a face composed of a forged material161 cites · 200288% earned
- 238US7153222B2Forged iron-type golf clubs160 cites · 200594% earned
- 244US5333775AHydroforming of compound tubes158 cites · 199494% earned
- 251US6435977B1Set of woods with face thickness variation based on loft angle152 cites · 200290% earned
Rising· last 2 yrs
Assignees whose newest B21K patents became public in the last 2 years — the current frontier
- 199NSK LTD79 patents · 681 citations
- 296DL TECH LLC6 patents · 33 citations
- 392NIPPON STEEL CORP13 patents · 73 citations
- 488SCHAEFFLER TECHNOLOGIES AG8 patents · 9 citations
- 583HYUNDAI MOTOR CO LTD21 patents · 7 citations
- 679BATTELLE MEMORIAL INSTITUTE2 patents · 27 citations
- 775NHK SPRING CO LTD8 patents · 3 citations
- 871SKF AB10 patents · 1 citations
- 967TOPGOLF CALLAWAY BRANDS CORP3 patents · 1 citations
- 1063ALL METAL SALES INC2 patents · 4 citations
- 1158SMS GROUP GMBH4 patents · 2 citations
- 1254INNOVATIVE PERFORMANCE APPLICATIONS LLC2 patents · 2 citations
- 1350LIFE CODED LLC2 patents · 2 citations
- 1446BONNER JEFFREY1 patents · 2 citations
- 1542SOUTHWEST TECH AND ENGINEERING RESEARCH INSTITUTE1 patents · 2 citations
- 1638LUVATA OHIO INC2 patents · 0 citations
- 1733COSCO SHIPPING MARINE EQUIPT & SPARES NJ CO LTD1 patents · 1 citations
- 1829HITACHI ASTEMO LTD3 patents · 0 citations
- 1925Magna powertrain gmbh & co kg2 patents · 0 citations
- 2021TOX PRESSOTECHNIK GMBH2 patents · 0 citations
- 2117PENN ENGINEERING & MFG CORP1 patents · 0 citations
- 2213SALVADORI GIUSEPPE1 patents · 0 citations
- 238AGCO INT GMBH1 patents · 0 citations
- 244CHUEN CHAO ENTPR CO LTD1 patents · 0 citations
- 251DONGGUAN HANXU HARDWARE PLASTIC TECH CO LTD1 patents · 0 citations
Active· last 5 yrs
Sustained B21K output across the last 5 years
- 199CALLAWAY GOLF CO38 patents · 5,884 citations
- 296PHILLIPS SCREW CO20 patents · 672 citations
- 392HONDA MOTOR CO LTD71 patents · 1,064 citations
- 488NSK LTD79 patents · 681 citations
- 583ACUSHNET CO18 patents · 421 citations
- 679GEN ELECTRIC31 patents · 480 citations
- 775NTN TOYO BEARING CO LTD46 patents · 347 citations
- 871CATERPILLAR INC23 patents · 260 citations
- 967TOYOTA MOTOR CO LTD35 patents · 211 citations
- 1063MITSUBISHI ELECTRIC CORP8 patents · 131 citations
- 1158AIDA ENG LTD17 patents · 161 citations
- 1254DENSO CORP13 patents · 129 citations
- 1350MITSUBISHI HEAVY IND LTD10 patents · 72 citations
- 1446DL TECH LLC6 patents · 33 citations
- 1542ILLINOIS TOOL WORKS7 patents · 63 citations
- 1638AMERICAN AXLE & MFG INC16 patents · 55 citations
- 1733NITTAN VALVA14 patents · 52 citations
- 1829NETUREN CO LTD14 patents · 46 citations
- 1925NIPPON STEEL CORP13 patents · 73 citations
- 2021GROB ERNST FA7 patents · 32 citations
- 2117GENESIS III INC4 patents · 23 citations
- 2213TSUBAKIMOTO CHAIN CO6 patents · 25 citations
- 238BAE SYSTEMS PLC3 patents · 51 citations
- 244METAL FORMING & COINING CORP4 patents · 24 citations
- 251CONCURRENT TECH CORPORATION4 patents · 51 citations
All-time canon
All-time PatentIndex Score in B21K
- 199CALLAWAY GOLF CO38 patents · 5,884 citations
- 296PHILLIPS SCREW CO20 patents · 672 citations
- 392BAKER HUGHES INC5 patents · 527 citations
- 488UNITED TECHNOLOGIES CORP31 patents · 846 citations
- 583MC DONNELL DOUGLAS CORP6 patents · 339 citations
- 679HONDA MOTOR CO LTD71 patents · 1,064 citations
- 775NSK LTD79 patents · 681 citations
- 871GEN MOTORS CORP12 patents · 423 citations
- 967HITACHI LTD34 patents · 712 citations
- 1063EATON CORP13 patents · 337 citations
- 1158ACUSHNET CO18 patents · 421 citations
- 1254TULIP CORP6 patents · 270 citations
- 1350GEN ELECTRIC31 patents · 480 citations
- 1446BLACK & DECKER INC7 patents · 236 citations
- 1542NIPPERT CO6 patents · 259 citations
- 1638NISSAN MOTOR17 patents · 341 citations
- 1733WHITESELL INT CORP15 patents · 241 citations
- 1829NITINOL TECHNOLOGIES INC5 patents · 256 citations
- 1925BARON YORAM8 patents · 73 citations
- 2021NTN TOYO BEARING CO LTD46 patents · 347 citations
- 2117FORD MOTOR CO14 patents · 285 citations
- 2213BOEING CO18 patents · 258 citations
- 238CATERPILLAR INC23 patents · 260 citations
- 244MULTIFASTENER CORP4 patents · 316 citations
- 251TEXTRON INC11 patents · 203 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth