Topic leaderboard
Time-interval measuring
Ranked by the PatentIndex Score — a 1–99 percentile within G04F · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest G04F patents became public in the last 2 years — the current frontier
- 199Michael H. Perrott8 patents · 127 citations
- 296Timothy A. Monk9 patents · 101 citations
- 392James P. Shaffer5 patents · 144 citations
- 488Neale Dutton9 patents · 127 citations
- 583David M. Rogers12 patents · 47 citations
- 679Tricia L. Wright12 patents · 47 citations
- 775Karl D. Nelson10 patents · 62 citations
- 871Juan Alejandro Herbsommer35 patents · 89 citations
- 967Rajesh Thirugnanam6 patents · 70 citations
- 1063Wayne H. Knox6 patents · 43 citations
- 1158John Kevin Moore8 patents · 45 citations
- 1254Krishnan Balakrishnan6 patents · 35 citations
- 1350Alexander B. Lebon5 patents · 23 citations
- 1446Brian M. Gregory5 patents · 23 citations
- 1542Taz M. Colangelo5 patents · 23 citations
- 1638Thomas M. Chaffee5 patents · 23 citations
- 1733Raghunandan Kolar Ranganathan5 patents · 41 citations
- 1829Chih-Hsien Chang10 patents · 16 citations
- 1925Martin M. Boyd8 patents · 32 citations
- 2021Chad Fertig10 patents · 26 citations
- 2117Masayoshi Todorokihara7 patents · 13 citations
- 2213Andrew Kortyna5 patents · 8 citations
- 238Dina Genkina5 patents · 8 citations
- 244Evan Salim5 patents · 8 citations
- 251Flavio Cruz5 patents · 8 citations
Active· last 5 yrs
Sustained G04F output across the last 5 years
- 199Robert Bogdan Staszewski22 patents · 429 citations
- 296Tomislav Lakovic12 patents · 281 citations
- 392Yuan-Yu Jau8 patents · 270 citations
- 488Ofir Degani17 patents · 221 citations
- 583Michael H. Perrott8 patents · 127 citations
- 679Ashoke Ravi10 patents · 206 citations
- 775Timothy A. Monk9 patents · 101 citations
- 871James P. Shaffer5 patents · 144 citations
- 967Neale Dutton9 patents · 127 citations
- 1063Christopher S. Roper13 patents · 109 citations
- 1158Hadi Amarloo4 patents · 143 citations
- 1254Rotem Banin9 patents · 104 citations
- 1350Chewn-Pu Jou13 patents · 78 citations
- 1446David M. Rogers12 patents · 47 citations
- 1542Tricia L. Wright12 patents · 47 citations
- 1638Karl D. Nelson10 patents · 62 citations
- 1733Juan Alejandro Herbsommer35 patents · 89 citations
- 1829Mikko Waltari5 patents · 49 citations
- 1925Simon Joshua Jacobs12 patents · 68 citations
- 2021Rajesh Thirugnanam6 patents · 70 citations
- 2117Wayne H. Knox6 patents · 43 citations
- 2213Feng-Wei Kuo11 patents · 48 citations
- 238Matthew T. Cashen6 patents · 57 citations
- 244John Kevin Moore8 patents · 45 citations
- 251Daniel Stick3 patents · 132 citations
All-time canon
Career PatentIndex Score in G04F
- 199Curtis A. Vock40 patents · 6,673 citations
- 296Dennis Darcy40 patents · 6,673 citations
- 392Peter Flentov38 patents · 5,584 citations
- 488David J. Haas24 patents · 2,214 citations
- 583Sandra Haas10 patents · 1,275 citations
- 679Jeremy G. Dunne7 patents · 387 citations
- 775Aaron B. Weast11 patents · 587 citations
- 871Robert Bogdan Staszewski22 patents · 429 citations
- 967Takamoto Watanabe19 patents · 572 citations
- 1063Jamian R. Cobbett6 patents · 437 citations
- 1158James Molyneux6 patents · 437 citations
- 1254Roozbeh Parsa19 patents · 317 citations
- 1350Tomislav Lakovic12 patents · 281 citations
- 1446Khurram Waheed6 patents · 198 citations
- 1542Peter J. Hopper8 patents · 238 citations
- 1638Alfred S. Braunberger17 patents · 256 citations
- 1733Gary E. Zitzmann4 patents · 370 citations
- 1829Peter M. Bonutti4 patents · 370 citations
- 1925Shigeru Morokawa9 patents · 339 citations
- 2021Matt Capozzi10 patents · 407 citations
- 2117Andrew Bodkin3 patents · 1,411 citations
- 2213Miles W. Brown10 patents · 246 citations
- 238Michael T. Hoffman10 patents · 246 citations
- 244Yuan-Yu Jau8 patents · 270 citations
- 251Ofir Degani17 patents · 221 citations
Rising· last 2 yrs
The top-scoring G04F patents made public in the last 2 years
- 199US11913835B1✦ AIVector noise subtraction in vapor cell spectroscopy5 cites · 202484% earned
- 296US12189008B1✦ AIAtomic beam magnetic resonance method and system based on combined separated oscillatory f2 cites · 202576% earned
- 392US11933823B1✦ AIMethods and apparatus to compare voltages3 cites · 202472% earned
- 488US11942988B1Reducing scintillation noise in free space optical communications2 cites · 202453% earned
- 583US11923857B1DTC nonlinearity correction2 cites · 202476% earned
- 679US12038780B1Phase mismatch detection for a multiphase system2 cites · 202476% earned
- 775US12334943B2Atomic clock system2 cites · 202476% earned
- 871US12372849B1Quantum spectrum sensing systems1 cites · 202550% earned
- 967US11884474B1Product dispensing clock2 cites · 202467% earned
- 1063US11901906B1Hybrid fractional-N sampling phase locked loop (PLL) with accurate digital-to-time convert2 cites · 202476% earned
- 1158US12147201B2Segmented digital-to-time converter2 cites · 202476% earned
- 1254US12381567B2Digital-to-time converter calibration1 cites · 202467% earned
- 1350US12212327B2Phase-locked loops (PLL), including time-to-digital converter (TDC) gain calibration circu1 cites · 202467% earned
- 1446US12255660B2Independently clocking digital loop filter by time-to-digital converter in digital phase-l1 cites · 202467% earned
- 1542US11870444B1Entropy source circuit1 cites · 202467% earned
- 1638US12092997B2High-precision time synchronization system and method using virtual atomic clocks1 cites · 202467% earned
- 1733US11876523B1DPLL timing normalization1 cites · 202467% earned
- 1829US12111618B1Metronome pushcart1 cites · 202467% earned
- 1925USD1023810STimer display1 cites · 202446% earned
- 2021US12083069B1Switches for medication container caps1 cites · 202456% earned
- 2117US12124682B2Stopwatch and timer user interfaces0 cites · 20240% earned
- 2213US12298721B2Atomic clock with enhanced oscillator regulation0 cites · 20240% earned
- 238US12226246B2Ultra-precision timing clock method0 cites · 20240% earned
- 244US12445135B2Circuit, chip and semiconductor device0 cites · 20240% earned
- 251US12470224B2Spur cancellation for spur measurement0 cites · 20240% earned
Active· last 5 yrs
The top-scoring G04F patents of the last 5 years
- 199US10895850B1✦ AIMixed-domain circuit with differential domain-converters81 cites · 202193% earned
- 296US11283459B1✦ AICalibration of a time-to-digital converter using a virtual phase-locked loop24 cites · 202282% earned
- 392US11387833B1✦ AIDifferential digital-to-time converter for even-order INL cancellation and supply noise/di24 cites · 202290% earned
- 488US11575433B1Reducing scintillation noise in free space optical communications19 cites · 202375% earned
- 583US11150609B1Trapped ion platform with optical input and output28 cites · 202191% earned
- 679US11832868B2Measuring the presence time of a catheter in a patient during a medical procedure20 cites · 202190% earned
- 775US11402479B1Communicating information using photonic crystal transceivers12 cites · 202288% earned
- 871US11239853B1Hybrid analog-to-digital converter with multi-domain signal processing18 cites · 202289% earned
- 967US11268806B2Dynamical locking of optical path times using entangled photons16 cites · 202289% earned
- 1063US11677404B1Independently clocking digital loop filter by time-to-digital converter in digital phase-l10 cites · 202387% earned
- 1158US11012083B1Voltage-to-time-to-digital converter (VTDC) with coarse analog-to-digital converter (ADC)12 cites · 202188% earned
- 1254US11067954B1Time-to-digital converters with low area and low power consumption14 cites · 202183% earned
- 1350US11097177B1Repulsion-based swim system and methods for use thereof11 cites · 202188% earned
- 1446US11223362B2Phase-locked loop circuit and digital-to-time convertor error cancelation method thereof10 cites · 202187% earned
- 1542US11569831B1Time-to-digital converter calibration8 cites · 202386% earned
- 1638USD938834STimer11 cites · 202176% earned
- 1733US10976709B1Latched gray code for ToF applications11 cites · 202182% earned
- 1829US11366430B2Vapor cells having one or more optical windows bonded to a dielectric body11 cites · 202182% earned
- 1925US10962933B1Multibit per stage pipelined time-to-digital converter (TDC)10 cites · 202187% earned
- 2021US11913835B1Vector noise subtraction in vapor cell spectroscopy5 cites · 202484% earned
- 2117US11018688B1DTC device and method based on capacitive DAC charging9 cites · 202181% earned
- 2213US11271584B2Integrated circuit, electronic device including the same, and operating method thereof7 cites · 202286% earned
- 238US11101809B1Metal vapor-density control system with composite multiphase electrode8 cites · 202186% earned
- 244US11031945B1Time-to-digital converter circuit linearity test mechanism8 cites · 202186% earned
- 251US11646743B1Digital phase-locked loop5 cites · 202384% earned
All-time canon
The defining G04F patents of the whole record
- 199US6539336B1✦ AISport monitoring system for determining airtime, speed, power absorbed and other factors s745 cites · 200385% earned
- 296US7092846B2✦ AISystems and methods for determining performance data391 cites · 200584% earned
- 392US7457724B2✦ AIShoes and garments employing one or more of accelerometers, wireless transmitters, process375 cites · 200684% earned
- 488US7133329B2Device with time indicating means359 cites · 200491% earned
- 583US7072789B2Systems for assessing athletic performance354 cites · 200491% earned
- 679US6959259B2System and methods for determining performance data344 cites · 200384% earned
- 775US8562489B2Athletic watch341 cites · 201185% earned
- 871US6014346AMedical timer/monitor and method of monitoring patient status332 cites · 200094% earned
- 967US6266623B1Sport monitoring apparatus for determining loft time, speed, power absorbed and other fact323 cites · 200184% earned
- 1063US6885971B2Methods and systems for assessing athletic performance312 cites · 200291% earned
- 1158US7162392B2Sport performance systems for measuring athletic performance, and associated methods301 cites · 200694% earned
- 1254US5636146AApparatus and methods for determining loft time and speed276 cites · 199787% earned
- 1350US7054784B2Sport monitoring systems268 cites · 200584% earned
- 1446US7983876B2Shoes and garments employing one or more of accelerometers, wireless transmitters, process256 cites · 201083% earned
- 1542US6498994B2Systems and methods for determining energy experienced by a user and associated with activ233 cites · 200183% earned
- 1638US5058088ATime indicator226 cites · 199194% earned
- 1733US5802015AIntelligent label215 cites · 199894% earned
- 1829US5446705ATime indicator having discrete adhesive214 cites · 199594% earned
- 1925US5220541AWatch movement having a chronograph module adapted on a motor module213 cites · 199394% earned
- 2021US4903254ATime indicator enhancement method213 cites · 199094% earned
- 2117US5960380AApparatus and methods for determining loft time and speed199 cites · 199987% earned
- 2213US6516284B2Speedometer for a moving sportsman197 cites · 200191% earned
- 238US7623987B2Shoes and garments employing one or more of accelerometers, wireless transmitters, process187 cites · 200982% earned
- 244US6856934B2Sport monitoring systems and associated methods187 cites · 200383% earned
- 251US6012002AVehicle travel meter185 cites · 200094% earned
Rising· last 2 yrs
Assignees whose newest G04F patents became public in the last 2 years — the current frontier
- 199TEXAS INSTRUMENTS INC102 patents · 978 citations
- 296APPLE INC30 patents · 346 citations
- 392SILICON LAB INC20 patents · 232 citations
- 488IBM25 patents · 261 citations
- 583SEIKO EPSON CORP187 patents · 586 citations
- 679HONEYWELL INT INC33 patents · 239 citations
- 775SAMSUNG ELECTRONICS CO LTD36 patents · 193 citations
- 871TAIWAN SEMICONDUCTOR MFG CO LTD44 patents · 135 citations
- 967HRL LAB LLC16 patents · 125 citations
- 1063SKYWORKS SOLUTIONS INC12 patents · 107 citations
- 1158HAMAMATSU PHOTONICS KK9 patents · 79 citations
- 1254TIME TIMER LLC12 patents · 47 citations
- 1350ST MICROELECTRONICS RES & DEV LTD7 patents · 45 citations
- 1446COMMISSARIAT ENERGIE ATOMIQUE7 patents · 57 citations
- 1542NEC CORP10 patents · 41 citations
- 1638US NAVY5 patents · 50 citations
- 1733XILINX INC5 patents · 46 citations
- 1829ATTOCHRON LLC5 patents · 23 citations
- 1925NXP USA INC6 patents · 23 citations
- 2021CYPRESS SEMICONDUCTOR CORP5 patents · 30 citations
- 2117COLDQUANTA INC7 patents · 8 citations
- 2213MEDIATEK INC5 patents · 19 citations
- 238SEMICONDUCTOR COMPONENTS IND LLC7 patents · 8 citations
- 244MONTRES BREGUET SA13 patents · 9 citations
- 251CIENA CORP3 patents · 15 citations
Active· last 5 yrs
Sustained G04F output across the last 5 years
- 199NIKE INC27 patents · 1,268 citations
- 296TEXAS INSTRUMENTS INC102 patents · 978 citations
- 392CITIZEN WATCH CO LTD40 patents · 931 citations
- 488APPLE INC30 patents · 346 citations
- 583CASIO COMPUTER CO LTD25 patents · 453 citations
- 679SILICON LAB INC20 patents · 232 citations
- 775IBM25 patents · 261 citations
- 871SEIKO EPSON CORP187 patents · 586 citations
- 967CALIFORNIA INST OF TECHN7 patents · 204 citations
- 1063INTEL CORP37 patents · 246 citations
- 1158QUALCOMM INC23 patents · 236 citations
- 1254HONEYWELL INT INC33 patents · 239 citations
- 1350INFINEON TECHNOLOGIES AG18 patents · 150 citations
- 1446SAMSUNG ELECTRONICS CO LTD36 patents · 193 citations
- 1542GLASHUETTER UHRENBETRIEB GMBH9 patents · 114 citations
- 1638TOSHIBA KK23 patents · 149 citations
- 1733TAIWAN SEMICONDUCTOR MFG CO LTD44 patents · 135 citations
- 1829HRL LAB LLC16 patents · 125 citations
- 1925ADVANTEST CORP8 patents · 113 citations
- 2021SKYWORKS SOLUTIONS INC12 patents · 107 citations
- 2117MITSUBISHI ELECTRIC CORP7 patents · 100 citations
- 2213Quantum Valley Ideas Laboratories4 patents · 143 citations
- 238HAMAMATSU PHOTONICS KK9 patents · 79 citations
- 244REALTEK SEMICONDUCTOR CORP10 patents · 96 citations
- 251TIME TIMER LLC12 patents · 47 citations
All-time canon
All-time PatentIndex Score in G04F
- 199PHATRAT TECH INC16 patents · 4,471 citations
- 296NIKE INC27 patents · 1,268 citations
- 392TEMTEC INC12 patents · 1,495 citations
- 488PHATRAT TECHNOLOGY LLC6 patents · 333 citations
- 583EBAUCHESFABRIK ETA AG16 patents · 738 citations
- 679LASER TECHNOLOGY INC7 patents · 387 citations
- 775VOCK CURTIS A5 patents · 247 citations
- 871TEXAS INSTRUMENTS INC102 patents · 978 citations
- 967CITIZEN WATCH CO LTD40 patents · 931 citations
- 1063APPLE INC30 patents · 346 citations
- 1158HEWLETT PACKARD CO15 patents · 474 citations
- 1254CASIO COMPUTER CO LTD25 patents · 453 citations
- 1350BONUTTI PETER M4 patents · 370 citations
- 1446SEIKO INSTR & ELECTRONICS30 patents · 520 citations
- 1542KERNCO INC7 patents · 292 citations
- 1638SILICON LAB INC20 patents · 232 citations
- 1733IBM25 patents · 261 citations
- 1829DENSO CORP18 patents · 283 citations
- 1925MOTOROLA INC10 patents · 216 citations
- 2021SEIKO EPSON CORP187 patents · 586 citations
- 2117SEIKO INSTR INC26 patents · 279 citations
- 2213AGILENT TECHNOLOGIES INC13 patents · 227 citations
- 238TIMEX GROUP BV6 patents · 174 citations
- 244GUIDE TECHNOLOGY INC7 patents · 178 citations
- 251TEKTRONIX INC17 patents · 258 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth