Topic leaderboard
Obtaining energy from radioactive sources
Ranked by the PatentIndex Score — a 1–99 percentile within G21H · public-visibility date · generated 2026-07-19
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest G21H patents became public in the last 2 years — the current frontier
- 199Peter Cabauy19 patents · 83 citations
- 296Larry C. Olsen8 patents · 58 citations
- 392Bret J. Elkind6 patents · 14 citations
- 488Jesse Grant6 patents · 14 citations
- 583Austin Lo5 patents · 4 citations
- 679Andrew M. Schimmoeller4 patents · 4 citations
- 775Brian Cherundolo4 patents · 4 citations
- 871Clif Moyers4 patents · 4 citations
- 967Felix Schmitt3 patents · 4 citations
- 1063Jared William Schwede3 patents · 4 citations
- 1158Kyana Van Houten3 patents · 4 citations
- 1254Lucas Heinrich Hess3 patents · 4 citations
- 1350Geoffrey Woods2 patents · 4 citations
- 1446Jerrold E. Hyams2 patents · 4 citations
- 1542Troy Michael Howe4 patents · 0 citations
- 1638Steven Whitehead2 patents · 2 citations
- 1733Junaid Razvi2 patents · 1 citations
- 1829Matthew A. Simmons2 patents · 1 citations
- 1925Roy Long2 patents · 1 citations
- 2021Karsten Richter3 patents · 1 citations
- 2117Philipp Michel2 patents · 1 citations
- 2213Steven D. Howe2 patents · 0 citations
- 238Richard Gruenhagen1 patents · 1 citations
- 244Adon Delgado, Jr.1 patents · 0 citations
- 251Chih Tsung Kuo1 patents · 0 citations
Active· last 5 yrs
Sustained G21H output across the last 5 years
- 199Peter Cabauy19 patents · 83 citations
- 296Larry C. Olsen8 patents · 58 citations
- 392Andreas Fenner7 patents · 18 citations
- 488Adam J. Duzik7 patents · 13 citations
- 583Bret J. Elkind6 patents · 14 citations
- 679Jesse Grant6 patents · 14 citations
- 775Michael D. Heibel7 patents · 15 citations
- 871Dennis M. Bushnell6 patents · 9 citations
- 967Austin Lo5 patents · 4 citations
- 1063Andrew M. Schimmoeller4 patents · 4 citations
- 1158Brian Cherundolo4 patents · 4 citations
- 1254Clif Moyers4 patents · 4 citations
- 1350Jan J. Tatarkiewicz4 patents · 6 citations
- 1446Felix Schmitt3 patents · 4 citations
- 1542Jared William Schwede3 patents · 4 citations
- 1638Kyana Van Houten3 patents · 4 citations
- 1733Lucas Heinrich Hess3 patents · 4 citations
- 1829Rebecca J. Nikolic5 patents · 3 citations
- 1925Anna J. Malin3 patents · 4 citations
- 2021Bruce C. Fleischhauer3 patents · 4 citations
- 2117Paul F. Gerrish3 patents · 4 citations
- 2213John Winter Murphy4 patents · 3 citations
- 238Wieslaw Bohdan Kuzmicz2 patents · 6 citations
- 244Chris Hutson3 patents · 4 citations
- 251Neil Anthony Fox3 patents · 4 citations
All-time canon
Career PatentIndex Score in G21H
- 199Jerry J. Conley5 patents · 317 citations
- 296Mvs Chandrashekhar7 patents · 110 citations
- 392Philip S. Brody6 patents · 93 citations
- 488Peter Cabauy19 patents · 83 citations
- 583Gregory R. Brotz4 patents · 125 citations
- 679Gary B. Mortensen3 patents · 264 citations
- 775Virginia Russell4 patents · 108 citations
- 871David L. Purdy7 patents · 63 citations
- 967Larry C. Olsen8 patents · 58 citations
- 1063Alfred P. Wolf4 patents · 35 citations
- 1158Larry L. Gadeken3 patents · 73 citations
- 1254Noren Pan4 patents · 54 citations
- 1350Donald B. King3 patents · 51 citations
- 1446Richard M. Lambrecht3 patents · 43 citations
- 1542Andreas Fenner7 patents · 18 citations
- 1638Lennart Mannik2 patents · 156 citations
- 1733Arthur A. Loya4 patents · 28 citations
- 1829Frank R. George4 patents · 28 citations
- 1925Mary C. Ritz4 patents · 28 citations
- 2021Michael F. Daly4 patents · 28 citations
- 2117Robert T. Bryant4 patents · 28 citations
- 2213Alejandro Anibal Valda Ochoa2 patents · 83 citations
- 238Herve Tricoire2 patents · 83 citations
- 244Laurent Pinot2 patents · 83 citations
- 251Luc Valentin2 patents · 83 citations
Rising· last 2 yrs
The top-scoring G21H patents made public in the last 2 years
- 199US12214679B1✦ AISelf-contained charging system for electric vehicle battery1 cites · 202556% earned
- 295US12453813B2✦ AIRadioisotope delivery system with multiple detectors to detect gamma and beta emissions0 cites · 20240% earned
- 391US12094620B2✦ AISemiconductor device with epitaxial liftoff layers for directly converting radioisotope em0 cites · 20240% earned
- 486US12165779B2System and method for thermionic energy conversion0 cites · 20240% earned
- 582US12170154B2Series and/or parallel connected alpha, beta, and gamma voltaic cell devices0 cites · 20240% earned
- 677US12120956B2Ion-enhanced thermoelectric generator0 cites · 20240% earned
- 773US12191043B2Structured plasma cell energy converter for a nuclear reactor0 cites · 20240% earned
- 868US12300993B2Apparatus for detection of electrical disturbances resulting from electromagnetic pulse an0 cites · 20240% earned
- 964US12080441B2Hydrogen production system and method of using same0 cites · 20240% earned
- 1059US12505933B2Electrical generator system including radionuclide material and intrinsic n-type semicondu0 cites · 20250% earned
- 1155US12322520B2High performance power sources integrating an ion media and radiation0 cites · 20240% earned
- 1250US12352145B2Composition and process for enhanced oil recovery0 cites · 20250% earned
- 1345US12462945B2Power source device and power generation method utilizing radioactive energy due to alpha 0 cites · 20250% earned
- 1441US12468051B2Radiation detector, method of driving the radiation detector, and radiation-image pickup s0 cites · 20240% earned
- 1536US12462944B1Small form factor betavoltaic battery for use in applications requiring a volumetrically s0 cites · 20250% earned
- 1632US12461253B2Calibrator device designed to measure the activity of a radioelement0 cites · 20240% earned
- 1727US12347580B2Nuclear battery including flexible nuclear battery module0 cites · 20240% earned
- 1823US11908677B1Gaseous tritium light source0 cites · 20240% earned
- 1918US12112937B2Lighting element for a firearm or sight0 cites · 20240% earned
- 2014US12327650B2Scalable radioisotope power tiles0 cites · 20240% earned
- 219US12397934B2Nuclear-based heat and power for low-earth orbit (LEO) and deep space missions0 cites · 20240% earned
- 225US12308134B1Atomic battery for wellbore operation0 cites · 20250% earned
- 231US12609212B2Tritium uptake and storage via metal-organic frameworks (MOFS) for betavoltaic power sourc0 cites · 2025
Active· last 5 yrs
The top-scoring G21H patents of the last 5 years
- 199US11249725B1✦ AIMethod and apparatus for highly effective on-chip true random number generator utilizing b5 cites · 202284% earned
- 296US11264144B2✦ AISystem and method for thermionic energy conversion4 cites · 202167% earned
- 392US11842820B2✦ AIStructured plasma cell energy converter for a nuclear reactor2 cites · 202361% earned
- 488US12050291B2Indirect conversion nuclear battery using transparent scintillator material2 cites · 202267% earned
- 583US12214679B1Self-contained charging system for electric vehicle battery1 cites · 202556% earned
- 679US11783956B2Semiconductor device with epitaxial liftoff layers for directly converting radioisotope em2 cites · 202258% earned
- 775US11646679B2High performance electric generators boosted by nuclear electron avalanche (NEA)2 cites · 202161% earned
- 871US11721451B2Thermionic power cell2 cites · 202267% earned
- 967US12170153B2Systems and techniques for calibrating radioisotope delivery systems with a gamma detector2 cites · 202176% earned
- 1063US11837373B2Hazardous material repository systems and methods1 cites · 202250% earned
- 1158US11614921B2Method and apparatus for highly effective on- chip quantum random number generator1 cites · 202356% earned
- 1254US11749419B2High performance power sources integrating an ion media and radiation1 cites · 202356% earned
- 1350US11764053B1Lighting element1 cites · 202367% earned
- 1446US12213327B2Charge or electricity generating devices and methods of making and use thereof1 cites · 202367% earned
- 1542US12453813B2Radioisotope delivery system with multiple detectors to detect gamma and beta emissions0 cites · 20240% earned
- 1638US11875907B2Series and/or parallel connected alpha, beta, and gamma voltaic cell devices0 cites · 20230% earned
- 1733US11881325B2Nuclear radiation particle power converter0 cites · 20210% earned
- 1829US12120956B2Ion-enhanced thermoelectric generator0 cites · 20240% earned
- 1925US11569001B2Autonomous self-powered system for removing thermal energy from pools of liquid heated by 0 cites · 20210% earned
- 2021US11990746B2Apparatus for detection of electrical disturbances resulting from electromagnetic pulse an0 cites · 20230% earned
- 2117US11842824B2Self-recharging direct conversion electrical energy storage method0 cites · 20220% earned
- 2213US11670432B2Multi-layered radio-isotope for enhanced photoelectron avalanche process0 cites · 20220% earned
- 238US12080435B2Methods of manufacture for nuclear batteries0 cites · 20220% earned
- 244US12080441B2Hydrogen production system and method of using same0 cites · 20240% earned
- 251US12096691B2Peltier with optimal levels of augmenting radiation0 cites · 20220% earned
All-time canon
The defining G21H patents of the whole record
- 199US7476883B2✦ AIBiomarker generator system180 cites · 200894% earned
- 296US6419621B1✦ AICoiled brachytherapy device149 cites · 200294% earned
- 392US4047093A✦ AIDirect thermal-electric conversion for geothermal energy recovery148 cites · 197794% earned
- 488US6479920B1Direct charge radioisotope activation and power generation140 cites · 200393% earned
- 583US5859484ARadioisotope-powered semiconductor battery132 cites · 199993% earned
- 679US5994638AMethod and apparatus for thermionic generator128 cites · 199990% earned
- 775US7235216B2Apparatus and method for producing radiopharmaceuticals122 cites · 200693% earned
- 871US5235232AAdjustable-output electrical energy source using light-emitting polymer110 cites · 199393% earned
- 967US5721462ANuclear battery104 cites · 199893% earned
- 1063US5049743ASurface located isotope tracer injection apparatus99 cites · 199193% earned
- 1158US7734331B2Systems, methods and apparatus for preparation, delivery and monitoring of radioisotopes i93 cites · 201087% earned
- 1254US5082505ASelf-sustaining power module93 cites · 199293% earned
- 1350US4348254AMethod of making solar cell90 cites · 198293% earned
- 1446US4022876AMass spectrometric immunoassay87 cites · 197793% earned
- 1542US5606213ANuclear batteries87 cites · 199793% earned
- 1638US5124610ATritiated light emitting polymer electrical energy source83 cites · 199293% earned
- 1733US5260621AHigh energy density nuclide-emitter, voltaic-junction battery80 cites · 199393% earned
- 1829US5396141ARadioisotope power cells80 cites · 199593% earned
- 1925US6238812B1Isotopic semiconductor batteries78 cites · 200193% earned
- 2021US5008579ALight emitting polymer electrical energy source71 cites · 199193% earned
- 2117US5642014ASelf-powered device70 cites · 199792% earned
- 2213US6118204ALayered metal foil semiconductor power device70 cites · 200092% earned
- 238US5087533AContact potential difference cell67 cites · 199292% earned
- 244US7586102B2Automated system for formulating radiopharmaceuticals63 cites · 200892% earned
- 251US4024420ADeep diode atomic battery62 cites · 197792% earned
Rising· last 2 yrs
Assignees whose newest G21H patents became public in the last 2 years — the current frontier
- 199CITY LABS INC14 patents · 35 citations
- 294BRACCO DIAGNOSTICS INC5 patents · 6 citations
- 388LO AUSTIN5 patents · 4 citations
- 482MB MICROTEC AG5 patents · 5 citations
- 576SPARK THERMIONICS INC3 patents · 4 citations
- 671HOWE IND LLC4 patents · 0 citations
- 765STARGENA INC2 patents · 1 citations
- 859GRUENHAGEN RICHARD1 patents · 1 citations
- 953BRADLEY ARTHUR THOMAS2 patents · 0 citations
- 1047INFINITE POWER COMPANY PTY LTD1 patents · 0 citations
- 1141Whole World LLC1 patents · 0 citations
- 1235AEROSPACE CORP1 patents · 0 citations
- 1329CANON KK1 patents · 0 citations
- 1424CHEN PO-LIN1 patents · 0 citations
- 1518HALLIBURTON ENERGY SERVICES INC1 patents · 0 citations
- 1612HAMILTON SUNDSTRAND SPACE SYS1 patents · 0 citations
- 176LEMER PAX1 patents · 0 citations
- 181SATO HIROSHI1 patents · 0 citations
Active· last 5 yrs
Sustained G21H output across the last 5 years
- 199NASA14 patents · 124 citations
- 296CITY LABS INC14 patents · 35 citations
- 392MEDTRONIC INC7 patents · 18 citations
- 488WESTINGHOUSE ELECTRIC CO LLC7 patents · 15 citations
- 583BRACCO DIAGNOSTICS INC5 patents · 6 citations
- 679DEEP ISOLATION INC3 patents · 7 citations
- 775LO AUSTIN5 patents · 4 citations
- 871KOREA ATOMIC ENERGY RES5 patents · 10 citations
- 967MB MICROTEC AG5 patents · 5 citations
- 1063SPARK THERMIONICS INC3 patents · 4 citations
- 1158L LIVERMORE NAT SECURITY LLC5 patents · 3 citations
- 1254UNIV BRISTOL3 patents · 4 citations
- 1350OHIO STATE INNOVATION FOUNDATION2 patents · 4 citations
- 1446HOWE IND LLC4 patents · 0 citations
- 1542KUZMICZ WIESLAW BOHDAN1 patents · 5 citations
- 1638RANDAEMON SP Z O O3 patents · 1 citations
- 1733STARGENA INC2 patents · 1 citations
- 1829GRUENHAGEN RICHARD1 patents · 1 citations
- 1925BRADLEY ARTHUR THOMAS2 patents · 0 citations
- 2021HOLTEC INTERNATIONAL2 patents · 0 citations
- 2117BATTELLE ENERGY ALLIANCE LLC2 patents · 0 citations
- 2213ZENO POWER SYSTEMS INC2 patents · 0 citations
- 238INFINITE POWER COMPANY PTY LTD1 patents · 0 citations
- 244U S DEVCOM ARMY RES LABORATORY1 patents · 0 citations
- 251Whole World LLC1 patents · 0 citations
All-time canon
All-time PatentIndex Score in G21H
- 199JOHNSON CO E F5 patents · 317 citations
- 296GEN ELECTRIC6 patents · 207 citations
- 392US ARMY7 patents · 108 citations
- 488US ENERGY10 patents · 141 citations
- 583NASA14 patents · 124 citations
- 679SPENCER MICHAEL5 patents · 66 citations
- 775ONTARIO HYDRO3 patents · 243 citations
- 871CITY LABS INC14 patents · 35 citations
- 967CORNELL RES FOUNDATION INC3 patents · 105 citations
- 1063ARCO MED PROD CO5 patents · 33 citations
- 1158RUSSELL VIRGINIA3 patents · 84 citations
- 1254BOREALIS TECH LTD2 patents · 184 citations
- 1350NUCLEAR BATTERY CORP8 patents · 27 citations
- 1446CABAUY PETER5 patents · 48 citations
- 1542SANDIA CORP3 patents · 51 citations
- 1638MEDTRONIC INC7 patents · 18 citations
- 1733US NAVY3 patents · 39 citations
- 1829REGENESIS BIOMEDICAL INC4 patents · 28 citations
- 1925CENTRE NAT RECH SCIENT2 patents · 83 citations
- 2021ROCHESTER INST TECH4 patents · 26 citations
- 2117WESTINGHOUSE ELECTRIC CO LLC7 patents · 15 citations
- 2213BETABATT INC2 patents · 66 citations
- 238HENKEL KGAA2 patents · 55 citations
- 244MEDUSA SPECIAL PROJECTS LLC3 patents · 20 citations
- 251LAL AMIT3 patents · 21 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth