Inventor · disambiguated record
Chandra P. Khattak
Also filed as: KHATTAK CHANDRA · KHATTAK CHANDRA P · SCHMID FREDERICK
18 granted patents·10 pending applications·621 citations·filing 1978–2017
95Inventor score
Files withCRYSTAL SYST12GT SOLAR INC5WAN YUEPENG2ADVANCED RENEWABLEENERGY CO LLC1ADVANCED RENEWABLEENERGY COMPANY LLC1
Top patents by PatentIndex Score
28 records- 0198US4646710AMulti-wafer slicing with a fixed abrasiveCRYSTAL SYST·Filed 1983·Granted Mar 3, 1987·240 cites·10 claims
- 0287US4256530ACrystal growingCRYSTAL SYST·Filed 1978·Granted Mar 17, 1981·38 cites·13 claims
- 0386US8177910B2System and method for crystal growingSCHMID FREDERICK·Filed 2011·Granted May 15, 2012·9 cites·18 claims
- 0485US4727852AMulti-wafer slicing with a fixed abrasiveCRYSTAL SYST·Filed 1985·Granted Mar 1, 1988·41 cites·13 claims
- 0583US5972107AMethod for purifying siliconCRYSTAL SYST·Filed 1997·Granted Oct 26, 1999·46 cites·19 claims
- 0683US4218418AProcesses of casting an ingot and making a silica containerCRYSTAL SYST·Filed 1978·Granted Aug 19, 1980·30 cites·21 claims
- 0782US7344596B2System and method for crystal growingCRYSTAL SYST·Filed 2005·Granted Mar 18, 2008·10 cites·13 claims
- 0882US4384564AProcess of forming a plated wirepack with abrasive particles only in the cutting surface with a controlled kerfCRYSTAL SYST·Filed 1981·Granted May 24, 1983·37 cites·6 claims
- 0981US4840699AGallium arsenide crystal growthGHEMINI TECHNOLOGIES·Filed 1987·Granted Jun 20, 1989·36 cites·12 claims
- 1078US5394825AMethod and apparatus for growing shaped crystalsCRYSTAL SYST·Filed 1992·Granted Mar 7, 1995·36 cites·15 claims
- 1175US6418921B1Method and apparatus for cutting workpiecesCRYSTAL SYST·Filed 2001·Granted Jul 16, 2002·18 cites·22 claims
- 1272US6368403B1Method and apparatus for purifying siliconCRYSTAL SYST·Filed 2000·Granted Apr 9, 2002·38 cites·33 claims
- 1371US7918936B2System and method for crystal growingGT CRYSTAL SYSTEMS LLC·Filed 2007·Granted Apr 5, 2011·5 cites·10 claims
- 1470US7927385B2Processing of fine silicon powder to produce bulk siliconGT SOLAR INC·Filed 2008·Granted Apr 19, 2011·2 cites·14 claims
- 1568US5438973AShaped bladesCRYSTAL SYST·Filed 1993·Granted Aug 8, 1995·33 cites·21 claims
- 1662US8647432B2Method of making large surface area filaments for the production of polysilicon in a CVD reactorWAN YUEPENG·Filed 2011·Granted Feb 11, 2014·2 cites·17 claims
- 1754US9683286B2Increased polysilicon deposition in a CVD reactorWAN YUEPENG·Filed 2006·Granted Jun 20, 2017·0 cites·12 claims
- 1854US2011044842A1Dry conversion of high purity ultrafine silicon powder to densified pellet form for silicon melting applicationsGT SOLAR INC·Filed 2010·Application pending·0 cites
- 1953US2014261158A1Furnance employing components for use with graphite hot zoneADVANCED RENEWABLEENERGY COMPANY LLC·Filed 2014·Application pending·0 cites
- 2051US2007148034A1Dry conversion of high purity ultrafine silicon powder to densified pellet form for silicon melting applicationsGT SOLAR INC·Filed 2007·Application pending·0 cites
- 2150US2011200496A1System and method for arranging heating element in crystal growth apparatusGT SOLAR INC·Filed 2009·Application pending·0 cites
- 2247US2017253960A1Method of making large surface area filaments for the production of polysilicon in a cvd reactorGTAT CORP·Filed 2017·Application pending·0 cites
- 2346US2011259262A1Systems and methods for growing monocrystalline silicon ingots by directional solidificationGT SOLAR INC·Filed 2009·Application pending·0 cites
- 2443US2012048083A1High throughput sapphire core productionSCHWERDTFEGER CARL RICHARD·Filed 2011·Application pending·0 cites
- 2542US9611565B2Crystal growth apparatus with ceramic coating and methods for preventing molten material breach in a crystal growth apparatusRAVI BHUVARAGASAMY G·Filed 2011·Granted Apr 4, 2017·0 cites·21 claims
- 2640US2004211496A1Reusable crucible for silicon ingot growthCRYSTAL SYST·Filed 2003·Application pending·0 cites
- 2729US2011253033A1Crystal growing system and method thereofADVANCED RENEWABLEENERGY CO LLC·Filed 2011·Application pending·0 cites
- 2827US2012055396A1Intermediate materials and methods for high-temperature applicationsDHANARAJ GOVINDHAN·Filed 2011·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →