Inventor · disambiguated record
Ching-Feng Chang
Also filed as: CHANG CHING F · CHANG CHING-FENG
21 granted patents·5 pending applications·163 citations·filing 1983–2018
94Inventor score
Files withGRAFTECH INT HOLDINGS INC9MILLER DOUGLAS J6CHANG CHING-FENG3UCAR CARBON CO INC2UCAR CARBON TECH2
Top patents by PatentIndex Score
26 records- 0191US4889838ARedistribution of organohalosilanes utilizing heat treated crystalline alumina catalystsUNION CARBIDE CORP AND PLASTIC·Filed 1983·Granted Dec 26, 1989·34 cites·3 claims
- 0288US8007659B2Reduced puffing needle coke from coal tar distillateGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Aug 30, 2011·7 cites·23 claims
- 0388US7543952B1Lighting fixture for aquariumCHANG CHING FENG·Filed 2008·Granted Jun 9, 2009·30 cites·11 claims
- 0487US8007658B2Reduced puffing needle coke from coal tarGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Aug 30, 2011·7 cites·23 claims
- 0580US8658315B2Reduced puffing needle coke from decant oilMILLER DOUGLAS J·Filed 2011·Granted Feb 25, 2014·2 cites·8 claims
- 0679US8530094B2Reduced puffing needle coke from coal tar distillateMILLER DOUGLAS J·Filed 2011·Granted Sep 10, 2013·2 cites·6 claims
- 0778US8747651B2High coking value pitchMILLER DOUGLAS J·Filed 2008·Granted Jun 10, 2014·3 cites·13 claims
- 0876US8007660B2Reduced puffing needle coke from decant oilGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Aug 30, 2011·5 cites·22 claims
- 0970US9777221B2Method of producing needle coke for low CTE graphite electrodesMILLER DOUGLAS J·Filed 2006·Granted Oct 3, 2017·2 cites·15 claims
- 1069US5843298AMethod of production of solids-free coal tar pitchUCAR CARBON TECH·Filed 1996·Granted Dec 1, 1998·23 cites·35 claims
- 1167US9758905B2Process of making carbon fibers derived from lignin/carbon residueGRAFTECH INT HOLDINGS INC·Filed 2013·Granted Sep 12, 2017·1 cites·19 claims
- 1266US10253264B2Method of producing needle coke for low CTE graphite electrodesGRAFTECH INT HOLDINGS INC·Filed 2017·Granted Apr 9, 2019·0 cites·16 claims
- 1364US6800364B2Isotropic pitch-based materials for thermal insulationUCAR CARBON CO INC·Filed 2002·Granted Oct 5, 2004·5 cites·16 claims
- 1462USD426474SAngle gaugeCHANG CHING-FENG·Filed 1999·Granted Jun 13, 2000·12 cites·1 claims
- 1560USRE42775EIsotropic pitch-based materials for thermal insulationGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Oct 4, 2011·0 cites·13 claims
- 1660US2013012744A1Reduced Puffing Needle Coke From Coal Tar DistillateMILLER DOUGLAS J·Filed 2012·Application pending·0 cites
- 1759US8828348B2Reduced puffing needle coke from coal tarMILLER DOUGLAS J·Filed 2011·Granted Sep 9, 2014·0 cites·6 claims
- 1856US10011492B2Carbon products derived from lignin/carbon residueGRAFTECH INT HOLDINGS INC·Filed 2014·Granted Jul 3, 2018·0 cites·13 claims
- 1956US2018282166A1Carbon products derived from lignin/carbon residueGRAFTECH INT HOLDINGS INC·Filed 2018·Application pending·0 cites
- 2053US5534133AContinuous method for increasing the Q. I. concentration of liquid tar while concurrently producing a Q. I. free tarUCAR CARBON TECH·Filed 1994·Granted Jul 9, 1996·19 cites·5 claims
- 2152US9683313B2Method of making carbon fibers from ligninGRAFTECH INT HOLDINGS INC·Filed 2013·Granted Jun 20, 2017·0 cites·19 claims
- 2251US7150837B2Isotropic pitch-based materials for thermal insulationUCAR CARBON CO INC·Filed 2004·Granted Dec 19, 2006·1 cites·2 claims
- 2351US2011044881A1Method For The Catalytic Extraction Of CoalSTANSBERRY PETER G·Filed 2009·Application pending·0 cites
- 2450US4979998AProcess for forming a metal boride coating on a carbonaceous substrateUNION CARBIDE CORP·Filed 1989·Granted Dec 25, 1990·10 cites·10 claims
- 2549US2007051321A1Aquarium cover having an extendible and retractable extension cover memberCHANG CHING-FENG·Filed 2005·Application pending·0 cites
- 2645US2014102277A1Height adjustment device for band saw machineKING SAW MACHINERY LTD·Filed 2012·Application pending·0 cites
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