Inventor · disambiguated record
Irwin C. Lewis
Also filed as: LEWIS IRWIN C · LEWIS IRWIN CHARLES
63 granted patents·18 pending applications·1,322 citations·filing 1973–2017
99Inventor score
Files withUCAR CARBON TECH17MILLER DOUGLAS J15UCAR CARBON CO INC15GRAFTECH INT HOLDINGS INC14UNION CARBIDE CORP13
Top patents by PatentIndex Score
81 records- 0198US7785712B2Carbon foam structural insulated panelGRAFTECH INT HOLDINGS INC·Filed 2007·Granted Aug 31, 2010·73 cites·16 claims
- 0296US7264878B2Laminated carbon foam sandwich for naval deckingUCAR CARBON CO INC·Filed 2006·Granted Sep 4, 2007·29 cites·24 claims
- 0395US3976729AProcess for producing carbon fibers from mesophase pitchUNION CARBIDE CORP·Filed 1973·Granted Aug 24, 1976·61 cites·28 claims
- 0494US4317809ACarbon fiber production using high pressure treatment of a precursor materialUNION CARBIDE CORP·Filed 1979·Granted Mar 2, 1982·43 cites·36 claims
- 0594US4017327AProcess for producing mesophase pitchUNION CARBIDE CORP·Filed 1974·Granted Apr 12, 1977·50 cites·6 claims
- 0693US8372510B2High strength monolithic carbon foamGRAFTECH INT HOLDINGS INC·Filed 2009·Granted Feb 12, 2013·12 cites·6 claims
- 0792US7232606B2Sealant for high strength carbon foamUCAR CARBON CO INC·Filed 2005·Granted Jun 19, 2007·14 cites·17 claims
- 0891US7972698B2Carbon foam core panelsGRAFTECH INT HOLDINGS INC·Filed 2007·Granted Jul 5, 2011·25 cites·16 claims
- 0991US4303631AProcess for producing carbon fibersUNION CARBIDE CORP·Filed 1980·Granted Dec 1, 1981·43 cites·20 claims
- 1089US6878331B2Manufacture of carbon composites by hot pressingUCAR CARBON CO INC·Filed 2003·Granted Apr 12, 2005·35 cites·10 claims
- 1189US6699427B2Manufacture of carbon/carbon composites by hot pressingUCAR CARBON CO INC·Filed 2002·Granted Mar 2, 2004·44 cites·22 claims
- 1289US5102855AProcess for producing high surface area activated carbonUCAR CARBON TECH·Filed 1990·Granted Apr 7, 1992·78 cites·10 claims
- 1389US4402928ACarbon fiber production using high pressure treatment of a precursor materialUNION CARBIDE CORP·Filed 1981·Granted Sep 6, 1983·36 cites·31 claims
- 1489US3995014AProcess for producing carbon fibers from mesophase pitchUNION CARBIDE CORP·Filed 1974·Granted Nov 30, 1976·29 cites·2 claims
- 1588US8007659B2Reduced puffing needle coke from coal tar distillateGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Aug 30, 2011·7 cites·23 claims
- 1688US5677082ACompacted carbon for electrochemical cellsUCAR CARBON TECH·Filed 1996·Granted Oct 14, 1997·92 cites·20 claims
- 1788US5413738AGraphite electrodes and their productionUCAR CARBON TECH·Filed 1985·Granted May 9, 1995·47 cites·24 claims
- 1888US4032430AProcess for producing carbon fibers from mesophase pitchUNION CARBIDE CORP·Filed 1973·Granted Jun 28, 1977·43 cites·3 claims
- 1987US8007658B2Reduced puffing needle coke from coal tarGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Aug 30, 2011·7 cites·23 claims
- 2086US6280663B1Process of making pins for connecting carbon electrodesUCAR CARBON CO INC·Filed 2000·Granted Aug 28, 2001·28 cites·16 claims
- 2186US5476679AMethod for making a graphite component covered with a layer of glassy carbonUCAR CARBON TECH·Filed 1995·Granted Dec 19, 1995·58 cites·1 claims
- 2283US5607770ACarbon-carbon composites containing poorly graphitizing pitch as a binder and/or impregnant having a reduced coefficient of thermal expansion and improved flexural strengthUCAR CARBON TECH·Filed 1995·Granted Mar 4, 1997·40 cites·19 claims
- 2383US4457828AMesophase pitch having ellipspidal molecules and method for making the pitchUNION CARBIDE CORP·Filed 1982·Granted Jul 3, 1984·22 cites·12 claims
- 2482US4645584AMesophase pitch feedstock from hydrotreated decant oilsAMOCO CORP·Filed 1985·Granted Feb 24, 1987·27 cites·4 claims
- 2580US8658315B2Reduced puffing needle coke from decant oilMILLER DOUGLAS J·Filed 2011·Granted Feb 25, 2014·2 cites·8 claims
- 2680US7544316B2Process for making graphite articlesGRAFTECH INT HOLDINGS INC·Filed 2005·Granted Jun 9, 2009·6 cites·13 claims
- 2780US5167796AMethod of forming an electrode from a sulfur containing decant oil feedstockUCAR CARBON TECH·Filed 1989·Granted Dec 1, 1992·36 cites·7 claims
- 2879US8530094B2Reduced puffing needle coke from coal tar distillateMILLER DOUGLAS J·Filed 2011·Granted Sep 10, 2013·2 cites·6 claims
- 2978US8747651B2High coking value pitchMILLER DOUGLAS J·Filed 2008·Granted Jun 10, 2014·3 cites·13 claims
- 3078US7563841B2Cement for carbon articlesGRAFTECH INT HOLDINGS INC·Filed 2007·Granted Jul 21, 2009·2 cites·17 claims
- 3177US5688155ACarbon--carbon composites containing poorly graphitizing pitch as a binder and/or impregnantUCAR CARBON TECH·Filed 1995·Granted Nov 18, 1997·27 cites·4 claims
- 3277US5501729APitch based impregnant for carbon and graphite and methodUCAR CARBON TECH·Filed 1995·Granted Mar 26, 1996·33 cites·5 claims
- 3376US8007660B2Reduced puffing needle coke from decant oilGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Aug 30, 2011·5 cites·22 claims
- 3474US7527855B2High strength monolithic carbon foamGRAFTECH INT HOLDINGS INC·Filed 2004·Granted May 5, 2009·12 cites·16 claims
- 3571US7207424B2Manufacture of carbon/carbon composites by hot pressingUCAR CARBON CO INC·Filed 2003·Granted Apr 24, 2007·14 cites·9 claims
- 3670US9777221B2Method of producing needle coke for low CTE graphite electrodesMILLER DOUGLAS J·Filed 2006·Granted Oct 3, 2017·2 cites·15 claims
- 3769US5843298AMethod of production of solids-free coal tar pitchUCAR CARBON TECH·Filed 1996·Granted Dec 1, 1998·23 cites·35 claims
- 3869US4431513AMethods for producing mesophase pitch and binder pitchUNION CARBIDE CORP·Filed 1982·Granted Feb 14, 1984·12 cites·16 claims
- 3968US7413793B2Induction furnace with unique carbon foam insulationGRAFTECH INT HOLDINGS INC·Filed 2006·Granted Aug 19, 2008·4 cites·9 claims
- 4066US10253264B2Method of producing needle coke for low CTE graphite electrodesGRAFTECH INT HOLDINGS INC·Filed 2017·Granted Apr 9, 2019·0 cites·16 claims
- 4166US5639707AProcess for the storage of methane with activated carbonUCAR CARBON TECH·Filed 1996·Granted Jun 17, 1997·25 cites·1 claims
- 4265US7758779B2Reinforced resin-derived carbon foamGRAFTECH INT HOLDINGS INC·Filed 2005·Granted Jul 20, 2010·1 cites·10 claims
- 4365US5280063ARoom temperature setting carbonaceous cementUCAR CARBON TECH·Filed 1992·Granted Jan 18, 1994·16 cites·18 claims
- 4464US6800364B2Isotropic pitch-based materials for thermal insulationUCAR CARBON CO INC·Filed 2002·Granted Oct 5, 2004·5 cites·16 claims
- 4564US4971679APlasticizer and method of preparing pitch for use in carbon and graphite productionUNION CARBIDE CORP·Filed 1989·Granted Nov 20, 1990·13 cites·8 claims
- 4661US5756062AChemically modified graphite for electrochemical cellsUCAR CARBON TECH·Filed 1996·Granted May 26, 1998·29 cites·21 claims
- 4760USRE42775EIsotropic pitch-based materials for thermal insulationGRAFTECH INT HOLDINGS INC·Filed 2008·Granted Oct 4, 2011·0 cites·13 claims
- 4860US7658902B2Low CTE highly isotropic graphiteGRAFTECH INT HOLDINGS INC·Filed 2006·Granted Feb 9, 2010·1 cites·25 claims
- 4960US6916435B2Process of making graphite articlesUCAR CARBON CO INC·Filed 2003·Granted Jul 12, 2005·4 cites·27 claims
- 5060US2013012744A1Reduced Puffing Needle Coke From Coal Tar DistillateMILLER DOUGLAS J·Filed 2012·Application pending·0 cites
Showing the top 50 of 81 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →