Inventor · disambiguated record
Edward Letts
Also filed as: LETTS EDWARD
26 granted patents·9 pending applications·145 citations·filing 2009–2017
96Inventor score
Top patents by PatentIndex Score
35 records- 0198US8420041B2High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystalHASHIMOTO TADAO·Filed 2012·Granted Apr 16, 2013·17 cites·24 claims
- 0297US9790617B2Group III nitride bulk crystals and their fabrication methodSIXPOINT MAT INC·Filed 2015·Granted Oct 17, 2017·6 cites·20 claims
- 0396US8236267B2High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystalHASHIMOTO TADAO·Filed 2009·Granted Aug 7, 2012·19 cites·20 claims
- 0495US9441311B2Growth reactor for gallium-nitride crystals using ammonia and hydrogen chlorideSIXPOINT MAT INC·Filed 2014·Granted Sep 13, 2016·7 cites·14 claims
- 0595US8764903B2Growth reactor for gallium-nitride crystals using ammonia and hydrogen chlorideHASHIMOTO TADAO·Filed 2010·Granted Jul 1, 2014·7 cites·10 claims
- 0692US9909230B2Seed selection and growth methods for reduced-crack group III nitride bulk crystalsSIXPOINT MAT INC·Filed 2016·Granted Mar 6, 2018·4 cites·25 claims
- 0792US8357243B2Method for testing group III-nitride wafers and group III-nitride wafers with test dataSIXPOINT MATERIALS INC·Filed 2009·Granted Jan 22, 2013·15 cites·30 claims
- 0891US10287709B2Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication methodSIXPOINT MAT INC·Filed 2017·Granted May 14, 2019·3 cites·13 claims
- 0989US8585822B2Method for testing group III-nitride wafers and group III-nitride wafers with test dataSIXPOINT MATERIALS INC·Filed 2012·Granted Nov 19, 2013·7 cites·20 claims
- 1089US8557043B2Method for testing group III-nitride wafers and group III-nitride wafers with test dataSIXPOINT MATERIALS INC·Filed 2012·Granted Oct 15, 2013·7 cites·23 claims
- 1188US9518340B2Method of growing group III nitride crystalsSIXPOINT MAT INC·Filed 2013·Granted Dec 13, 2016·9 cites·21 claims
- 1288US9202872B2Method of growing group III nitride crystalsSIXPOINT MATERIALS INC·Filed 2013·Granted Dec 1, 2015·8 cites·10 claims
- 1388US8921231B2Group III nitride wafer and its production methodSIXPOINT MATERIALS INC·Filed 2013·Granted Dec 30, 2014·7 cites·20 claims
- 1486US8728234B2Methods for producing improved crystallinity group III-nitride crystals from initial group III-nitride seed by ammonothermal growthLETTS EDWARD·Filed 2009·Granted May 20, 2014·8 cites·9 claims
- 1584US9543393B2Group III nitride wafer and its production methodSIXPOINT MAT INC·Filed 2013·Granted Jan 10, 2017·5 cites·22 claims
- 1684US9255342B2Bismuth-doped semi-insulating group III nitride wafer and its production methodSIXPOINT MATERIALS INC·Filed 2013·Granted Feb 9, 2016·5 cites·17 claims
- 1782US8852341B2Methods for producing GaN nutrient for ammonothermal growthLETTS EDWARD·Filed 2009·Granted Oct 7, 2014·4 cites·37 claims
- 1880US10242868B1Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication methodSIXPOINT MAT INC·Filed 2017·Granted Mar 26, 2019·3 cites·15 claims
- 1979US9803293B2Method for producing group III-nitride wafers and group III-nitride wafersHASHIMOTO TADAO·Filed 2009·Granted Oct 31, 2017·2 cites·30 claims
- 2077US9834863B2Group III nitride bulk crystals and fabrication methodSIXPOINT MAT INC·Filed 2015·Granted Dec 5, 2017·1 cites·28 claims
- 2172US2013216845A1High-pressure vessel for growing group iii nitride crystals and method of growing group iii nitride crystals using high-pressure vessel and group iii nitride crystalSIXPOINT MATERIALS INC·Filed 2013·Application pending·0 cites
- 2272US2013206057A1High-pressure vessel for growing group iii nitride crystals and method of growing group iii nitride crystals using high-pressure vessel and group iii nitride crystalSIXPOINT MATERIALS INC·Filed 2013·Application pending·0 cites
- 2370US10087548B2High-pressure vessel for growing group III nitride crystals and method of growing group III nitride crystals using high-pressure vessel and group III nitride crystalSIXPOINT MAT INC·Filed 2015·Granted Oct 2, 2018·0 cites·20 claims
- 2469US9435051B2Bismuth-doped semi-insulating group III nitride wafer and its production methodSIXPOINT MAT INC·Filed 2015·Granted Sep 6, 2016·1 cites·17 claims
- 2569US2016010238A1Method of growing group iii nitride crystals using high pressure vesselSIXPOINT MATERIALS INC·Filed 2015·Application pending·0 cites
- 2669US2014326175A1Reactor design for growing group iii nitride crystals and method of growing group iii nitride crystalsSIXPOINT MATERIALS INC·Filed 2014·Application pending·0 cites
- 2765US2017175295A1Method for producing group iii nitride wafers and group iii nitride wafersSIXPOINT MAT INC·Filed 2017·Application pending·0 cites
- 2863US10161059B2Group III nitride bulk crystals and their fabrication methodSIXPOINT MAT INC·Filed 2015·Granted Dec 25, 2018·0 cites·11 claims
- 2962US2010095882A1Reactor design for growing group iii nitride crystals and method of growing group iii nitride crystalsHASHIMOTO TADAO·Filed 2009·Application pending·0 cites
- 3059US9985102B2Methods for producing improved crystallinity group III-nitride crystals from initial group III-nitride seed by ammonothermal growthSIXPOINT MAT INC·Filed 2014·Granted May 29, 2018·0 cites·15 claims
- 3158US2014209925A1Methods for producing improved crystallinity group iii-nitride crystals from initial group iii-nitride seed by ammonothermal growthSIXPOINT MATERIALS INC·Filed 2014·Application pending·0 cites
- 3257US2017198407A1Methods for producing improved crystallinity group iii-nitride crystals from initial group iii-nitride seed by ammonothermal growthSIXPOINT MAT INC·Filed 2017·Application pending·0 cites
- 3352US10316431B2Method of growing group III nitride crystalsSIXPOINT MAT INC·Filed 2015·Granted Jun 11, 2019·0 cites·17 claims
- 3446US10354863B2Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication methodSIXPOINT MAT INC·Filed 2017·Granted Jul 16, 2019·0 cites·10 claims
- 3545US2019091807A1Seed crystal for growth of gallium nitride bulk crystal in supercritical ammonia and fabrication methodSIXPOINT MAT INC·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →