Topic leaderboard
Conversion of chemical elements
Ranked by the PatentIndex Score — a 1–99 percentile within G21G · public-visibility date · generated 2026-07-19
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest G21G patents became public in the last 2 years — the current frontier
- 199Holloway H. Frost7 patents · 17 citations
- 296Rodolfo Vaghetto7 patents · 17 citations
- 392Trevor D. Parker7 patents · 17 citations
- 488Yassin A. Hassan7 patents · 17 citations
- 583William Uhland15 patents · 25 citations
- 679Gregory Piefer14 patents · 44 citations
- 775David Pipes13 patents · 11 citations
- 871Brian Regna10 patents · 10 citations
- 967Craig Brunkhorst10 patents · 10 citations
- 1063Lauren Radford10 patents · 10 citations
- 1158John J. Munro, Iii8 patents · 25 citations
- 1254Michael D. Heibel16 patents · 12 citations
- 1350Roy H. Larsen4 patents · 7 citations
- 1446Ken Czerwinski3 patents · 26 citations
- 1542David E. Wazer7 patents · 13 citations
- 1638Thomas A. Dipetrillo7 patents · 13 citations
- 1733Robert A. Dekemp4 patents · 37 citations
- 1829Andrew M. Schimmoeller4 patents · 4 citations
- 1925Brian Cherundolo4 patents · 4 citations
- 2021Clif Moyers4 patents · 4 citations
- 2117Ali A. Abbasi4 patents · 4 citations
- 2213Robert William Riddoch6 patents · 4 citations
- 238Etienne Lefort7 patents · 0 citations
- 244Julian Frederick Kelly2 patents · 3 citations
- 251Christopher Paul Dunckley2 patents · 2 citations
Active· last 5 yrs
Sustained G21G output across the last 5 years
- 199Holloway H. Frost7 patents · 17 citations
- 296Rodolfo Vaghetto7 patents · 17 citations
- 392Trevor D. Parker7 patents · 17 citations
- 488Yassin A. Hassan7 patents · 17 citations
- 583Weilin Chen5 patents · 39 citations
- 679Yuanhao Liu5 patents · 39 citations
- 775William Uhland15 patents · 25 citations
- 871Gregory Piefer14 patents · 44 citations
- 967David Pipes13 patents · 11 citations
- 1063Brian Regna10 patents · 10 citations
- 1158Craig Brunkhorst10 patents · 10 citations
- 1254Lauren Radford10 patents · 10 citations
- 1350Maxim Kiselev4 patents · 196 citations
- 1446Matthew J. O'Hara9 patents · 23 citations
- 1542John J. Munro, Iii8 patents · 25 citations
- 1638Mark Harfensteller5 patents · 52 citations
- 1733Mark G. Shilton13 patents · 21 citations
- 1829Stefan Zeisler5 patents · 36 citations
- 1925David A. Ehst5 patents · 10 citations
- 2021Michael D. Heibel16 patents · 12 citations
- 2117Roy H. Larsen4 patents · 7 citations
- 2213Noriko Ishioka4 patents · 69 citations
- 238Luke T. Perkins9 patents · 12 citations
- 244Ken Czerwinski3 patents · 26 citations
- 251Ming-Chen Hsiao3 patents · 25 citations
All-time canon
Career PatentIndex Score in G21G
- 199Roy Coniglione5 patents · 517 citations
- 296Saed Mirzadeh11 patents · 319 citations
- 392Furn F. Knapp, Jr.9 patents · 282 citations
- 488Lane A. Bray10 patents · 245 citations
- 583Gary J. Ehrhardt7 patents · 272 citations
- 679John J. Hines5 patents · 246 citations
- 775Lisa Tam4 patents · 358 citations
- 871Bruce W. Wieland6 patents · 143 citations
- 967Anthony J. Armini4 patents · 425 citations
- 1063Charles R. Quirico7 patents · 137 citations
- 1158Ernest Balestracci7 patents · 137 citations
- 1254Julius P. Zodda12 patents · 106 citations
- 1350Andrew H. Bond6 patents · 138 citations
- 1446Krishnan Suthanthiran3 patents · 595 citations
- 1542Arnold L. Beets4 patents · 196 citations
- 1638Pei-Yi Lee6 patents · 68 citations
- 1733Terence Robert Frederick Forrest5 patents · 105 citations
- 1829Fu-Min Su4 patents · 166 citations
- 1925Dennis R. Phillips9 patents · 72 citations
- 2021Troy J. Tranter6 patents · 108 citations
- 2117Janet L. Gelbach12 patents · 68 citations
- 2213Rolf E. Swenson11 patents · 28 citations
- 238Scott Hassal3 patents · 188 citations
- 244Robert E. Klinkowstein3 patents · 284 citations
- 251Ruth Shefer3 patents · 284 citations
Rising· last 2 yrs
The top-scoring G21G patents made public in the last 2 years
- 199US12249437B2✦ AIProduction of highly purified 212PB3 cites · 202453% earned
- 296US12249439B2✦ AIMaterials and processes for generating radioisotopes2 cites · 202453% earned
- 392US12044636B1✦ AILocating mining sites using neutron detection2 cites · 202476% earned
- 488US12100580B1Locating mining sites using an open mass spectrometer1 cites · 202467% earned
- 583US12327648B2Molten salt reactor containment1 cites · 202546% earned
- 679US12476017B2Modular radioisotope production capsules and related method1 cites · 202467% earned
- 775US12412677B2Methods of energy generation from a Thorium molten salt system0 cites · 20240% earned
- 871US12424343B2Separation of actinium from an irradiated source material including thorium0 cites · 20240% earned
- 967US11957932B1Radioactive therapeutic device0 cites · 20240% earned
- 1063US12453813B2Radioisotope delivery system with multiple detectors to detect gamma and beta emissions0 cites · 20240% earned
- 1158US12451265B2Rubidium elution system control0 cites · 20250% earned
- 1254US12315649B2Purification process for the preparation of non-carrier added copper-640 cites · 20240% earned
- 1350US12247268B2Separation of rare earth elements0 cites · 20250% earned
- 1446US12340915B2Apparatus for production of lead-212 isotope0 cites · 20240% earned
- 1542US12505931B2Segmented reaction chamber for radioisotope production0 cites · 20240% earned
- 1638US12183473B2Method of magnetically removing an irradiated capsule from a burnable absorber rodlet0 cites · 20240% earned
- 1733US12254998B2Method of making a mercury based compound, mercury based compound, methods of using the me0 cites · 20240% earned
- 1829US12259508B2Wireless power level and power distribution monitoring and control system for subcritical 0 cites · 20240% earned
- 1925US12168148B2Neutron capture therapy system0 cites · 20240% earned
- 2021US12288625B2Reactor design with controlled thermal neutron flux for enhanced neutron activation potent0 cites · 20240% earned
- 2117US12267942B2Cooling plate assembly for plasma windows positioned in a beam accelerator system0 cites · 20240% earned
- 2213US12235405B1Extraterrestrial nanosecond neutron analysis and associated particle imaging0 cites · 20250% earned
- 238US12576171B2Composition of radioactive and non-radioactive microparticles0 cites · 20240% earned
- 244US12144876B2Security mechanisms for radiopharmaceutical elution system and elution process0 cites · 20240% earned
- 251US12570539B2Systems and methods for generating radionuclides0 cites · 20260% earned
Active· last 5 yrs
The top-scoring G21G patents of the last 5 years
- 199US11224761B1✦ AIRadioactive therapeutic device13 cites · 202275% earned
- 296US11826583B2✦ AINeutron capture therapy system9 cites · 202181% earned
- 392US12029599B2✦ AIMammography imaging system using X-ray fluorescence5 cites · 202284% earned
- 488US11400316B2Moderator for moderating neutrons8 cites · 202186% earned
- 583US12249439B2Materials and processes for generating radioisotopes2 cites · 202453% earned
- 679US11383204B1Method for production of lead-212 isotope4 cites · 202267% earned
- 775US12023524B2Neutron capture therapy system comprising a beam-shaping assembly having a moderator and a4 cites · 202282% earned
- 871US12125603B2Production of highly purified 212Pb4 cites · 202356% earned
- 967US11972874B2Purification process for the preparation of non-carrier added copper-642 cites · 202350% earned
- 1063US11443866B2Generator columns for elution systems loaded with pre-charged matrix4 cites · 202175% earned
- 1158US12044636B1Locating mining sites using neutron detection2 cites · 202476% earned
- 1254US11310902B2Compact multi-isotope solid target system utilizing liquid retrieval4 cites · 202182% earned
- 1350US11986680B2Neutron capture therapy system comprising a beam shaping assembly configured to shape a ne2 cites · 202267% earned
- 1446US12100580B1Locating mining sites using an open mass spectrometer1 cites · 202467% earned
- 1542US11114212B2Thorium molten salt system using internally generated proton-induced neutrons3 cites · 202156% earned
- 1638US12002596B2Targetry coupled separations2 cites · 202250% earned
- 1733US11460779B2Gamma ray generator and gamma ray lithography system2 cites · 202161% earned
- 1829US12327648B2Molten salt reactor containment1 cites · 202546% earned
- 1925US12080434B2Radioisotope activity surveillance apparatus, system, and method2 cites · 202267% earned
- 2021US11832374B1Method of making an annular radioisotope target having a helical coil-shaped foil ribbon b2 cites · 202376% earned
- 2117US12170153B2Systems and techniques for calibrating radioisotope delivery systems with a gamma detector2 cites · 202176% earned
- 2213US12194311B2Method for constructing photon source model function of medical linear accelerator1 cites · 202267% earned
- 238US11197938B1System and process for production of isotopes and isotope compositions2 cites · 202167% earned
- 244US12194316B2Neutron capture therapy system and target for particle beam generating device1 cites · 202250% earned
- 251US12213327B2Charge or electricity generating devices and methods of making and use thereof1 cites · 202367% earned
All-time canon
The defining G21G patents of the whole record
- 199US5342283A✦ AIEndocurietherapy452 cites · 199495% earned
- 296US5098640A✦ AIApparatus and method for detecting contraband using fast neutron activation354 cites · 199294% earned
- 392US5713828A✦ AIHollow-tube brachytherapy device298 cites · 199889% earned
- 488US5260581AMethod of treatment room selection verification in a radiation beam therapy system293 cites · 199394% earned
- 583US6010445ARadioactive medical device and process256 cites · 200094% earned
- 679US5621780AX-ray apparatus for applying a predetermined flux to an interior surface of a body cavity253 cites · 199794% earned
- 775US5460592AApparatus and method for making carrier assembly for radioactive seed carrier238 cites · 199594% earned
- 871US4702228AX-ray-emitting interstitial implants208 cites · 198791% earned
- 967US5163896APellet for a radioactive seed202 cites · 199291% earned
- 1063US4891165ADevice and method for encapsulating radioactive materials200 cites · 199094% earned
- 1158US4323055ARadioactive iodine seed198 cites · 198294% earned
- 1254US4994013APellet for a radioactive seed193 cites · 199191% earned
- 1350US6749554B1Medical tools and devices with improved ultrasound visibility192 cites · 200494% earned
- 1446US7476883B2Biomarker generator system180 cites · 200894% earned
- 1542US6099457AEndocurietherapy170 cites · 200088% earned
- 1638US4585009AStrontium-rubidium infusion pump with in-line dosimetry169 cites · 198690% earned
- 1733US4585941ADosimetry system for strontium-rubidium infusion pump160 cites · 198690% earned
- 1829US4784116ACapsule for interstitial implants157 cites · 198890% earned
- 1925US5182051ARaioactive tracing with particles155 cites · 199394% earned
- 2021US4861520ACapsule for radioactive source154 cites · 198994% earned
- 2117US6419621B1Coiled brachytherapy device149 cites · 200294% earned
- 2213US6458069B1Multi layer radiation delivery balloon147 cites · 200290% earned
- 238US6011825AProduction of 64 Cu and other radionuclides using a charged-particle accelerator145 cites · 200093% earned
- 244US6444990B1Multiple target, multiple energy radioisotope production139 cites · 200290% earned
- 251US4296785ASystem for generating and containerizing radioisotopes133 cites · 198193% earned
Rising· last 2 yrs
Assignees whose newest G21G patents became public in the last 2 years — the current frontier
- 199BRACCO DIAGNOSTICS INC20 patents · 83 citations
- 296TEXAS THORIUM LLC7 patents · 17 citations
- 392CURIUM US LLC24 patents · 17 citations
- 488Sciencons AS5 patents · 7 citations
- 583WESTINGHOUSE ELECTRIC CO LLC20 patents · 13 citations
- 679NEUBORON THERAPY SYSTEM LTD5 patents · 14 citations
- 775AdvanCell Isotopes Pty Ltd3 patents · 4 citations
- 871JUBILANT DRAXIMAGE INC10 patents · 4 citations
- 967SHINE TECHNOLOGIES LLC14 patents · 2 citations
- 1063SALVINO CHRIS3 patents · 3 citations
- 1158Natura Resources LLC2 patents · 1 citations
- 1254AUSTRALIAN NUCLEAR SCIENCE & TECH ORG2 patents · 1 citations
- 1350TERRAPOWER ISOTOPES LLC2 patents · 0 citations
- 1446ABK BIOMEDICAL INCORPORATED2 patents · 0 citations
- 1542BWXT ADVANCED TECH LLC2 patents · 0 citations
- 1638PERSPECTIVE THERAPEUTICS INC2 patents · 0 citations
- 1733ABILENE CHRISTIAN UNIV2 patents · 0 citations
- 1829CVF INT LLC2 patents · 0 citations
- 1925HERON NEUTRON MEDICAL CORP2 patents · 0 citations
- 2021HUAPENG NEUTRON TECH HANGZHOU CO LTD2 patents · 0 citations
- 2117PAREKH SUNEEL NAVNITDAS1 patents · 0 citations
- 2213CAMBRIDGE PHONON SYSTEMS INC1 patents · 0 citations
- 238BEAM ALPHA INC1 patents · 0 citations
- 244CHEMICAL DESIGN LABO LLC1 patents · 0 citations
- 251CHEN PO-LIN1 patents · 0 citations
Active· last 5 yrs
Sustained G21G output across the last 5 years
- 199BATTELLE MEMORIAL INSTITUTE20 patents · 278 citations
- 296NEUBORON MEDTECH LTD17 patents · 163 citations
- 392UT BATTELLE LLC10 patents · 175 citations
- 488BRACCO DIAGNOSTICS INC20 patents · 83 citations
- 583NASA7 patents · 78 citations
- 679BATTELLE ENERGY ALLIANCE LLC10 patents · 82 citations
- 775TEXAS THORIUM LLC7 patents · 17 citations
- 871CURIUM US LLC24 patents · 17 citations
- 967Sciencons AS5 patents · 7 citations
- 1063TOSHIBA KK3 patents · 86 citations
- 1158RIKEN7 patents · 17 citations
- 1254WESTINGHOUSE ELECTRIC CO LLC20 patents · 13 citations
- 1350UNIV TEXAS5 patents · 67 citations
- 1446UCHICAGO ARGONNE LLC13 patents · 8 citations
- 1542NorthStar Medical Radioisotopes LLC4 patents · 17 citations
- 1638TERRAPOWER LLC3 patents · 26 citations
- 1733NEUBORON THERAPY SYSTEM LTD5 patents · 14 citations
- 1829ORANO MED6 patents · 8 citations
- 1925BWXT ISOTOPE TECH GROUP INC12 patents · 4 citations
- 2021NIHON MEDIPHYSICS CO LTD5 patents · 17 citations
- 2117QSA GLOBAL INC7 patents · 7 citations
- 2213HITACHI LTD3 patents · 45 citations
- 238HALLIBURTON ENERGY SERVICES INC7 patents · 7 citations
- 244FRAMATOME GMBH9 patents · 6 citations
- 251AdvanCell Isotopes Pty Ltd3 patents · 4 citations
All-time canon
All-time PatentIndex Score in G21G
- 199SQUIBB & SONS INC9 patents · 598 citations
- 296US ENERGY36 patents · 879 citations
- 392IDEAMATRIX INC6 patents · 256 citations
- 488BATTELLE MEMORIAL INSTITUTE20 patents · 278 citations
- 583INTERNAT BRACHYTHERAPY S A5 patents · 233 citations
- 679GEN ELECTRIC16 patents · 260 citations
- 775MASSACHUSETTS INST TECHNOLOGY5 patents · 164 citations
- 871IMPLANT SCIENCES CORP4 patents · 425 citations
- 967AMERSHAM PLC5 patents · 359 citations
- 1063MALLINCKRODT INC4 patents · 348 citations
- 1158UNIV MISSOURI8 patents · 175 citations
- 1254US ARMY7 patents · 183 citations
- 1350BEST IND INC3 patents · 595 citations
- 1446NEUBORON MEDTECH LTD17 patents · 163 citations
- 1542GE HEALTHCARE LTD11 patents · 145 citations
- 1638TCI4 patents · 232 citations
- 1733SCIENCE APPLIC INT CORP3 patents · 571 citations
- 1829UNIV DUKE4 patents · 113 citations
- 1925UT BATTELLE LLC10 patents · 175 citations
- 2021UNIV CALIFORNIA16 patents · 112 citations
- 2117BRACCO DIAGNOSTICS INC20 patents · 83 citations
- 2213NASA7 patents · 78 citations
- 238GE HITACHI NUCL ENERGY AMERICA7 patents · 79 citations
- 244RADIOMED CORP3 patents · 267 citations
- 251SANDIA CORP4 patents · 137 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth