Topic leaderboard
Single-crystal growth & zone-melting
Ranked by the PatentIndex Score — a 1–99 percentile within C30B · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest C30B patents became public in the last 2 years — the current frontier
- 199Pekka Soininen20 patents · 3,501 citations
- 296Bo Zheng14 patents · 1,299 citations
- 392Cory John Gerdts14 patents · 1,299 citations
- 488John Tolle23 patents · 4,405 citations
- 583Rustem F. Ismagilov12 patents · 929 citations
- 679Mark P. D'Evelyn74 patents · 2,848 citations
- 775Valeri F. Tsvetkov36 patents · 1,189 citations
- 871Michael James Paisley16 patents · 663 citations
- 967Masatomo Shibata35 patents · 722 citations
- 1063Robert Tyler Leonard27 patents · 465 citations
- 1158Bruno Ghyselen35 patents · 475 citations
- 1254Adrian Powell26 patents · 487 citations
- 1350Petar Atanackovic29 patents · 228 citations
- 1446Dilip M. Shah25 patents · 284 citations
- 1542Lori D. Washington14 patents · 395 citations
- 1638Kiyotaka Takano26 patents · 339 citations
- 1733Robert T. Bondokov42 patents · 211 citations
- 1829Errol Antonio C. Sanchez21 patents · 516 citations
- 1925Matthew G. Goodman7 patents · 994 citations
- 2021William L. Luter29 patents · 254 citations
- 2117Andrew John Ouderkirk14 patents · 93 citations
- 2213Katherine Marie Smyth8 patents · 92 citations
- 238Matthew Donofrio10 patents · 144 citations
- 244Matthew Lee Markham16 patents · 213 citations
- 251Anzhong Chang12 patents · 196 citations
Active· last 5 yrs
Sustained C30B output across the last 5 years
- 199Pekka Soininen20 patents · 3,501 citations
- 296Bo Zheng14 patents · 1,299 citations
- 392Cory John Gerdts14 patents · 1,299 citations
- 488John Tolle23 patents · 4,405 citations
- 583Steven P. Denbaars56 patents · 1,745 citations
- 679James S. Speck57 patents · 1,721 citations
- 775Rustem F. Ismagilov12 patents · 929 citations
- 871Hua-Shuang Kong8 patents · 1,642 citations
- 967Takuji Okahisa45 patents · 1,799 citations
- 1063Mark P. D'Evelyn74 patents · 2,848 citations
- 1158Alexander I. Gurary19 patents · 1,542 citations
- 1254Hua Chung14 patents · 974 citations
- 1350Edwin L. Piner16 patents · 718 citations
- 1446Xueping Xu29 patents · 870 citations
- 1542Valeri F. Tsvetkov36 patents · 1,189 citations
- 1638Vladimir A. Dmitriev31 patents · 1,235 citations
- 1733Peidong Yang10 patents · 1,232 citations
- 1829Vladimir Ivantsov20 patents · 586 citations
- 1925Thomas F. Kuech17 patents · 715 citations
- 2021Shunpei Yamazaki50 patents · 1,105 citations
- 2117Naoki Matsumoto32 patents · 805 citations
- 2213Matthias Bauer19 patents · 916 citations
- 238Hiroshi Amano18 patents · 836 citations
- 244Koji Uematsu41 patents · 875 citations
- 251Robert J. Falster49 patents · 769 citations
All-time canon
Career PatentIndex Score in C30B
- 199Arthur Sherman8 patents · 4,077 citations
- 296Suvi Haukka24 patents · 4,537 citations
- 392Tuomo Suntola9 patents · 4,359 citations
- 488Ivo Raaijmakers33 patents · 4,984 citations
- 583Kai-Erik Elers17 patents · 3,627 citations
- 679Pekka Soininen20 patents · 3,501 citations
- 775Ville Antero Saanila15 patents · 3,481 citations
- 871Sven Lindfors17 patents · 4,105 citations
- 967Bo Zheng14 patents · 1,299 citations
- 1063Cory John Gerdts14 patents · 1,299 citations
- 1158Joshua David Tice12 patents · 1,183 citations
- 1254Sari Johanna Kaipio10 patents · 2,455 citations
- 1350Shuji Nakamura66 patents · 3,447 citations
- 1446Michael A. Tischler17 patents · 1,987 citations
- 1542John Tolle23 patents · 4,405 citations
- 1638Charles M. Lieber19 patents · 2,888 citations
- 1733Calvin H. Carter, Jr.26 patents · 3,298 citations
- 1829Moungi G. Bawendi32 patents · 2,319 citations
- 1925Michael A. Todd21 patents · 1,594 citations
- 2021Robert P. Vaudo28 patents · 2,324 citations
- 2117Gary M. Moore13 patents · 2,404 citations
- 2213Mark Hawkins16 patents · 2,511 citations
- 238Thomas Gehrke22 patents · 1,768 citations
- 244Kevin J. Linthicum19 patents · 1,766 citations
- 251Robert F. Davis11 patents · 2,380 citations
Rising· last 2 yrs
The top-scoring C30B patents made public in the last 2 years
- 199US12258678B2✦ AIGallium nitride single crystal substrate2 cites · 202476% earned
- 296US12421120B2✦ AINanodiamond with vacancy defect and quantum dot luminescence2 cites · 202567% earned
- 392US11952396B1✦ AICrystalline solids of nicotinic acid mononucleotide and esters thereof and methods of maki2 cites · 202467% earned
- 488US12163250B1Control of basal plane dislocations in large aluminum nitride crystals2 cites · 202467% earned
- 583US12351943B2n-Type GaN crystal, GaN wafer, and GaN crystal, GaN wafer and nitride semiconductor device1 cites · 202450% earned
- 679US12402380B2Nondestructive characterization for crystalline wafers1 cites · 202450% earned
- 775US12546030B2SiC epitaxial wafer and method of manufacturing SiC epitaxial wafer1 cites · 202550% earned
- 871US12215439B2SiC epitaxial wafer1 cites · 202450% earned
- 967US12302542B2Method of producing large EMI shielded GaAs infrared windows1 cites · 202467% earned
- 1063US12084791B2Method of producing large EMI shielded GaAs and GaP infrared windows1 cites · 202467% earned
- 1158US12203192B2Method of optimizing the EMI shielding and infrared transparency of GaAs IR windows1 cites · 202467% earned
- 1254US11866848B1Method and system for liquid encapsulated growth of cadmium zinc telluride crystals1 cites · 202456% earned
- 1350US12000062B1Method for the deposition of monocrystalline or polycrystalline tin alloys on crystallogra1 cites · 202467% earned
- 1446US12446367B2Epitaxial oxide transistor0 cites · 20240% earned
- 1542US11977231B1Optical lens assemblies0 cites · 20240% earned
- 1638US12046471B1Optimized thick heteroepitaxial growth of semiconductors with in-situ substrate pretreatme0 cites · 20240% earned
- 1733US12392913B2Scintillation crystal including a co-doped rare earth silicate, a radiation detection appa0 cites · 20240% earned
- 1829US12249506B2Methods and material deposition systems for forming semiconductor layers0 cites · 20240% earned
- 1925US12290458B2Stents having a hybrid pattern and methods of manufacture0 cites · 20240% earned
- 2021US12166085B2Ultrawide bandgap semiconductor devices including magnesium germanium oxides0 cites · 20240% earned
- 2117US12400904B2Thermal processing susceptor0 cites · 20240% earned
- 2213US12247314B2Systems for production of low oxygen content silicon0 cites · 20240% earned
- 238US12368162B2Nanostructured battery active materials and methods of producing same0 cites · 20240% earned
- 244US12180087B2Method for treating water contaminated with polycyclic organics0 cites · 20240% earned
- 251US12172931B2Method for making superconducting coil for magnetic resonance imaging0 cites · 20240% earned
Active· last 5 yrs
The top-scoring C30B patents of the last 5 years
- 199US11522103B1✦ AIEpitaxial oxide materials, structures, and devices25 cites · 202269% earned
- 296US11456361B1✦ AIUltrawide bandgap semiconductor devices including magnesium germanium oxides22 cites · 202278% earned
- 392US11219966B1✦ AILaser-assisted method for parting crystalline material19 cites · 202279% earned
- 488US10928656B1Systems and methods for actuation of asymmetric optical elements18 cites · 202171% earned
- 583US11654596B2Silicon carbide wafers with relaxed positive bow and related methods10 cites · 202173% earned
- 679US11155930B2Open Czochralski furnace for single crystal growth10 cites · 202165% earned
- 775US11958132B2SiC ingot processing method and laser processing apparatus10 cites · 202187% earned
- 871US11670508B2Methods and material deposition systems for forming semiconductor layers6 cites · 202267% earned
- 967US11519098B2Dislocation distribution for silicon carbide crystalline materials9 cites · 202187% earned
- 1063US11901181B2Carrier-assisted method for parting crystalline material along laser damage region7 cites · 202175% earned
- 1158US11827998B2Facile etching for single crystal cathode materials7 cites · 202186% earned
- 1254US12202017B2Cleaning tools and methods for cleaning the pull cable of an ingot puller apparatus4 cites · 202364% earned
- 1350US11111597B2Methods for growing a nitrogen doped single crystal silicon ingot using continuous Czochra9 cites · 202181% earned
- 1446US11867644B2Device for tuning microfluidic droplet frequency and synchronizing phase for serial femtos6 cites · 202174% earned
- 1542US11767610B2Use of buffer members during growth of single crystal silicon ingots6 cites · 202278% earned
- 1638US11384448B1Optimized Heteroepitaxial growth of semiconductors7 cites · 202261% earned
- 1733US11725304B2Continuous replenishment crystal growth4 cites · 202270% earned
- 1829US11795569B2Systems for producing a single crystal silicon ingot using a vaporized dopant6 cites · 202274% earned
- 1925US10982349B2Temperature field device comprising a first drum, a second drum, and a filler inside the s6 cites · 202178% earned
- 2021US11787830B2Crystalline solids of nicotinic acid mononucleotide and esters thereof and methods of maki3 cites · 202372% earned
- 2117US12112871B2Powder mixture of magnetoplumbite-type hexagonal ferrite, method for producing the same, a5 cites · 202184% earned
- 2213US12258678B2Gallium nitride single crystal substrate2 cites · 202476% earned
- 238US11326271B2Methods for forming a unitized crucible assembly6 cites · 202185% earned
- 244US10914529B1Advanced cooling system using throttled internal cooling passage flow for a window assembl5 cites · 202165% earned
- 251US12054850B2Large diameter silicon carbide wafers5 cites · 202169% earned
All-time canon
The defining C30B patents of the whole record
- 199US7061014B2✦ AINatural-superlattice homologous single crystal thin film, method for preparation thereof, 4,369 cites · 200596% earned
- 296US7323356B2✦ AILnCuO(S,Se,Te)monocrystalline thin film, its manufacturing method, and optical device or e4,192 cites · 200596% earned
- 392US7049190B2✦ AIMethod for forming ZnO film, method for forming ZnO semiconductor layer, method for fabric4,170 cites · 200496% earned
- 488US6203613B1Atomic layer deposition with nitrate containing precursors1,649 cites · 200196% earned
- 583US5916365ASequential chemical vapor deposition1,534 cites · 199995% earned
- 679US6534395B2Method of forming graded thin films using alternating pulses of vapor phase reactants1,315 cites · 200191% earned
- 775US6511539B1Apparatus and method for growth of a thin film1,224 cites · 200390% earned
- 871US5879459AVertically-stacked process reactor and cluster tool system for atomic layer deposition1,209 cites · 199995% earned
- 967US5558717ACVD Processing chamber1,163 cites · 199693% earned
- 1063US5711811AMethod and equipment for growing thin films1,147 cites · 199895% earned
- 1158US4389973AApparatus for performing growth of compound thin films1,116 cites · 198395% earned
- 1254US6042652AAtomic layer deposition apparatus for depositing atomic layer on multiple substrates1,052 cites · 200095% earned
- 1350US5855680AApparatus for growing thin films964 cites · 199995% earned
- 1446US5281274AAtomic layer epitaxy (ALE) apparatus for growing thin films of elemental semiconductors951 cites · 199493% earned
- 1542US5781693AGas introduction showerhead for an RTP chamber with upper and lower transparent plates and909 cites · 199895% earned
- 1638US4413022AMethod for performing growth of compound thin films898 cites · 198395% earned
- 1733US6153010AMethod of growing nitride semiconductors, nitride semiconductor substrate and nitride semi872 cites · 200087% earned
- 1829US6475276B1Production of elemental thin films using a boron-containing reducing agent864 cites · 200287% earned
- 1925US6066204AHigh pressure MOCVD reactor system831 cites · 200095% earned
- 2021US6225198B1Process for forming shaped group II-VI semiconductor nanocrystals, and product formed usin825 cites · 200195% earned
- 2117US6190634B1Carbide nanomaterials819 cites · 200195% earned
- 2213US6478872B1Method of delivering gas into reaction chamber and shower head used to deliver gas814 cites · 200292% earned
- 238US6342277B1Sequential chemical vapor deposition791 cites · 200287% earned
- 244US4436674AVapor mass flow control system789 cites · 198495% earned
- 251US5221556AGas injectors for reaction chambers in CVD systems755 cites · 199388% earned
Rising· last 2 yrs
Assignees whose newest C30B patents became public in the last 2 years — the current frontier
- 199APPLIED MATERIALS INC318 patents · 17,919 citations
- 296MASSACHUSETTS INST TECHNOLOGY110 patents · 7,445 citations
- 392ASM IP HOLDING BV57 patents · 4,009 citations
- 488SUMITOMO ELECTRIC INDUSTRIES462 patents · 6,978 citations
- 583GEN ELECTRIC192 patents · 5,723 citations
- 679UNIV CHICAGO25 patents · 751 citations
- 775NASA57 patents · 1,303 citations
- 871XEROX CORP14 patents · 655 citations
- 967NGK INSULATORS LTD172 patents · 1,068 citations
- 1063UT BATTELLE LLC39 patents · 1,329 citations
- 1158SHINETSU CHEMICAL CO116 patents · 1,000 citations
- 1254SUMITOMO CHEMICAL CO63 patents · 581 citations
- 1350ROHM CO LTD20 patents · 400 citations
- 1446SOITEC SILICON ON INSULATOR65 patents · 636 citations
- 1542COMMISSARIAT ENERGIE ATOMIQUE116 patents · 893 citations
- 1638CRYSTAL IS INC21 patents · 357 citations
- 1733Silanna UV Technologies Pte Ltd25 patents · 150 citations
- 1829UNIV CITY HONG KONG9 patents · 356 citations
- 1925DENSO CORP38 patents · 336 citations
- 2021WISCONSIN ALUMNI RES FOUND18 patents · 402 citations
- 2117SUMCO CORP208 patents · 712 citations
- 2213MERCK PATENT GMBH13 patents · 183 citations
- 238SEAGATE TECHNOLOGY LLC10 patents · 145 citations
- 244BONDOKOV ROBERT T21 patents · 91 citations
- 251TOKAI CARBON KK9 patents · 118 citations
Active· last 5 yrs
Sustained C30B output across the last 5 years
- 199APPLIED MATERIALS INC318 patents · 17,919 citations
- 296MASSACHUSETTS INST TECHNOLOGY110 patents · 7,445 citations
- 392TOKYO ELECTRON LTD139 patents · 9,921 citations
- 488UNIV CALIFORNIA142 patents · 7,267 citations
- 583ASM IP HOLDING BV57 patents · 4,009 citations
- 679UNIV NORTH CAROLINA STATE40 patents · 3,830 citations
- 775SAMSUNG ELECTRONICS CO LTD152 patents · 3,872 citations
- 871SUMITOMO ELECTRIC INDUSTRIES462 patents · 6,978 citations
- 967MITSUBISHI ELECTRIC CORP89 patents · 3,502 citations
- 1063IBM155 patents · 6,066 citations
- 1158US ARMY80 patents · 3,560 citations
- 1254SHINETSU HANDOTAI KK350 patents · 5,928 citations
- 1350GEN ELECTRIC192 patents · 5,723 citations
- 1446SEMICONDUCTOR ENERGY LAB92 patents · 2,656 citations
- 1542MICRON TECHNOLOGY INC108 patents · 2,327 citations
- 1638TOSHIBA KK101 patents · 3,033 citations
- 1733UNIV TEXAS18 patents · 1,116 citations
- 1829CALIFORNIA INST OF TECHN32 patents · 943 citations
- 1925JAPAN SCIENCE & TECH AGENCY38 patents · 8,663 citations
- 2021UNIV COLUMBIA23 patents · 1,275 citations
- 2117TDK CORP38 patents · 928 citations
- 2213TOYODA GOSEI KK46 patents · 1,205 citations
- 238NIPPON TELEGRAPH & TELEPHONE32 patents · 1,047 citations
- 244NICHIA CORP24 patents · 648 citations
- 251UNIV CHICAGO25 patents · 751 citations
All-time canon
All-time PatentIndex Score in C30B
- 199ASM INC74 patents · 7,254 citations
- 296APPLIED MATERIALS INC318 patents · 17,919 citations
- 392ASM INT41 patents · 4,169 citations
- 488MASSACHUSETTS INST TECHNOLOGY110 patents · 7,445 citations
- 583ASM MICROCHEMISTRY OY10 patents · 3,355 citations
- 679TOKYO ELECTRON LTD139 patents · 9,921 citations
- 775ADVANCED TECH MATERIALS36 patents · 3,459 citations
- 871UNIV CALIFORNIA142 patents · 7,267 citations
- 967HARVARD COLLEGE17 patents · 2,876 citations
- 1063ASM IP HOLDING BV57 patents · 4,009 citations
- 1158UNIV NORTH CAROLINA STATE40 patents · 3,830 citations
- 1254MOORE EPITAXIAL INC13 patents · 2,390 citations
- 1350SAMSUNG ELECTRONICS CO LTD152 patents · 3,872 citations
- 1446CREE INC94 patents · 4,089 citations
- 1542SUMITOMO ELECTRIC INDUSTRIES462 patents · 6,978 citations
- 1638MITSUBISHI ELECTRIC CORP89 patents · 3,502 citations
- 1733IBM155 patents · 6,066 citations
- 1829SYMETRIX CORP65 patents · 4,162 citations
- 1925US ARMY80 patents · 3,560 citations
- 2021SONY CORP103 patents · 3,668 citations
- 2117CANON KK135 patents · 5,057 citations
- 2213SHINETSU HANDOTAI KK350 patents · 5,928 citations
- 238GENUS INC6 patents · 2,166 citations
- 244US NAVY53 patents · 2,632 citations
- 251GEN ELECTRIC192 patents · 5,723 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth