Assignee
CRYSTAL IS INC
US·31 granted patents·8 pending applications·460 citations·filing 2002–2025
Top patents by PatentIndex Score
39 records- 0197US11840773B1Aluminum nitride single crystals having controllable color and methods of forming themCRYSTAL IS INC·Filed 2021·Granted Dec 12, 2023·4 cites·20 claims
- 0297US7641735B2Doped aluminum nitride crystals and methods of making themCRYSTAL IS INC·Filed 2006·Granted Jan 5, 2010·32 cites·27 claims
- 0396US8834630B2Defect reduction in seeded aluminum nitride crystal growthCRYSTAL IS INC·Filed 2012·Granted Sep 16, 2014·17 cites·33 claims
- 0496US8580035B2Large aluminum nitride crystals with reduced defects and methods of making themCRYSTAL IS INC·Filed 2012·Granted Nov 12, 2013·15 cites·19 claims
- 0596US8012257B2Methods for controllable doping of aluminum nitride bulk crystalsCRYSTAL IS INC·Filed 2007·Granted Sep 6, 2011·26 cites·42 claims
- 0695US9447519B2Aluminum nitride bulk crystals having high transparency to untraviolet light and methods of forming themCRYSTAL IS INC·Filed 2015·Granted Sep 20, 2016·11 cites·34 claims
- 0795US8896020B2Method and apparatus for producing large, single-crystals of aluminum nitrideCRYSTAL IS INC·Filed 2013·Granted Nov 25, 2014·14 cites·16 claims
- 0895US7638346B2Nitride semiconductor heterostructures and related methodsCRYSTAL IS INC·Filed 2006·Granted Dec 29, 2009·42 cites·25 claims
- 0995US7211146B2Powder metallurgy crucible for aluminum nitride crystal growthCRYSTAL IS INC·Filed 2004·Granted May 1, 2007·44 cites·32 claims
- 1094US8349077B2Large aluminum nitride crystals with reduced defects and methods of making themCRYSTAL IS INC·Filed 2006·Granted Jan 8, 2013·18 cites·23 claims
- 1194US6770135B2Method and apparatus for producing large, single-crystals of aluminum nitrideCRYSTAL IS INC·Filed 2002·Granted Aug 3, 2004·60 cites·34 claims
- 1293US7776153B2Method and apparatus for producing large, single-crystals of aluminum nitrideCRYSTAL IS INC·Filed 2005·Granted Aug 17, 2010·24 cites·6 claims
- 1393US6719843B2Powder metallurgy tungsten crucible for aluminum nitride crystal growthCRYSTAL IS INC·Filed 2002·Granted Apr 13, 2004·54 cites·21 claims
- 1490US7037838B2Method for polishing a substrate surfaceCRYSTAL IS INC·Filed 2002·Granted May 2, 2006·53 cites·15 claims
- 1589US10392722B2Defect reduction in seeded aluminum nitride crystal growthCRYSTAL IS INC·Filed 2017·Granted Aug 27, 2019·1 cites·21 claims
- 1687US7087112B1Nitride ceramics to mount aluminum nitride seed for sublimation growthCRYSTAL IS INC·Filed 2003·Granted Aug 8, 2006·31 cites·20 claims
- 1786US10370267B2Systems and methods for fluid treatment with homogeneous distribution of ultraviolet lightCRYSTAL IS INC·Filed 2017·Granted Aug 6, 2019·2 cites·35 claims
- 1881US9771666B2Defect reduction in seeded aluminum nitride crystal growthCRYSTAL IS INC·Filed 2015·Granted Sep 26, 2017·3 cites·40 claims
- 1980US11015263B2Defect reduction in seeded aluminum nitride crystal growthCRYSTAL IS INC·Filed 2019·Granted May 25, 2021·0 cites·21 claims
- 2079US9447521B2Method and apparatus for producing large, single-crystals of aluminum nitrideCRYSTAL IS INC·Filed 2014·Granted Sep 20, 2016·2 cites·20 claims
- 2179US7323414B2Method for polishing a substrate surfaceCRYSTAL IS INC·Filed 2006·Granted Jan 29, 2008·6 cites·16 claims
- 2274US9970127B2Method and apparatus for producing large, single-crystals of aluminum nitrideCRYSTAL IS INC·Filed 2016·Granted May 15, 2018·1 cites·21 claims
- 2371US2025154681A1Aluminum nitride single crystals having large crystal augmentation parametersCRYSTAL IS INC·Filed 2025·Application pending·0 cites
- 2469US12344957B1Tungsten-infused aluminum nitride crystals and methods of forming themCRYSTAL IS INC·Filed 2021·Granted Jul 1, 2025·0 cites·20 claims
- 2566US10801127B2Aluminum nitride bulk crystals having high transparency to ultraviolet light and methods of forming themCRYSTAL IS INC·Filed 2019·Granted Oct 13, 2020·0 cites·22 claims
- 2665US12343668B2Air disinfection chamberCRYSTAL IS INC·Filed 2021·Granted Jul 1, 2025·0 cites·20 claims
- 2762US11440818B2Fluid treatment reactorCRYSTAL IS INC·Filed 2020·Granted Sep 13, 2022·0 cites·20 claims
- 2860US11279632B2Fluid treatment reactorCRYSTAL IS INC·Filed 2020·Granted Mar 22, 2022·0 cites·23 claims
- 2960US2020058491A1Thick pseudomorphic nitride epitaxial layersCRYSTAL IS INC·Filed 2019·Application pending·0 cites
- 3058US10316428B2Aluminum nitride bulk crystals having high transparency to ultraviolet light and methods of forming themCRYSTAL IS INC·Filed 2016·Granted Jun 11, 2019·0 cites·36 claims
- 3158US2024101447A1NozzleCRYSTAL IS INC·Filed 2023·Application pending·0 cites
- 3256US11249015B2Chemical concentration measurement apparatusCRYSTAL IS INC·Filed 2020·Granted Feb 15, 2022·0 cites·20 claims
- 3356US2024343613A1Point-of-use liquid treatmentCRYSTAL IS INC·Filed 2023·Application pending·0 cites
- 3455US11530141B2Systems and methods for fluid disinfection with ultraviolet lightCRYSTAL IS INC·Filed 2019·Granted Dec 20, 2022·0 cites·22 claims
- 3555US2022226531A1Uvc durable filterCRYSTAL IS INC·Filed 2022·Application pending·0 cites
- 3648US12195362B2Periodic UVC dosingCRYSTAL IS INC·Filed 2020·Granted Jan 14, 2025·0 cites·19 claims
- 3747US2008134957A1Powder metallurgy crucible for aluminum nitride crystal growthCRYSTAL IS INC·Filed 2007·Application pending·0 cites
- 3842US2006005763A1Method and apparatus for producing large, single-crystals of aluminum nitrideCRYSTAL IS INC·Filed 2004·Application pending·0 cites
- 3938US2006288929A1Polar surface preparation of nitride substratesCRYSTAL IS INC·Filed 2006·Application pending·0 cites
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