Assignee
CALGON CARBON CORP
US·125 granted patents·33 pending applications·3,262 citations·filing 1980–2025
Top patents by PatentIndex Score
158 records- 0197US5348755AExtension of edible oil lifetime using activated carbonsCALGON CARBON CORP·Filed 1992·Granted Sep 20, 1994·124 cites·23 claims
- 0296US8715599B2Sorbent formulation for removal of mercury from flue gasCALGON CARBON CORP·Filed 2013·Granted May 6, 2014·16 cites·20 claims
- 0396US5356849ACatalytic carbonCALGON CARBON CORP·Filed 1993·Granted Oct 18, 1994·139 cites·4 claims
- 0496US4394354ASilver removal with halogen impregnated activated carbonCALGON CARBON CORP·Filed 1981·Granted Jul 19, 1983·77 cites·6 claims
- 0595US11872539B2Copper and nitrogen treated sorbent and method for making sameCALGON CARBON CORP·Filed 2021·Granted Jan 16, 2024·4 cites·13 claims
- 0695US5444031AProcess for making catalytic carbonCALGON CARBON CORP·Filed 1993·Granted Aug 22, 1995·97 cites·14 claims
- 0795US4708853AMercury adsorbent carbon molecular sieves and process for removing mercury vapor from gas streamsCALGON CARBON CORP·Filed 1985·Granted Nov 24, 1987·167 cites·12 claims
- 0894US11911743B2Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of useCALGON CARBON CORP·Filed 2020·Granted Feb 27, 2024·5 cites·13 claims
- 0994US10807034B2Sorbent devicesCALGON CARBON CORP·Filed 2018·Granted Oct 20, 2020·5 cites·45 claims
- 1094US8679430B2Methods for removal of mercury from flue gasCALGON CARBON CORP·Filed 2012·Granted Mar 25, 2014·12 cites·16 claims
- 1194US6565803B1Method for the inactivation of cryptosporidium parvum using ultraviolet lightCALGON CARBON CORP·Filed 1999·Granted May 20, 2003·137 cites·14 claims
- 1293US5336835AProduct/process/application for removal of mercury from liquid hydrocarbonCALGON CARBON CORP·Filed 1992·Granted Aug 9, 1994·157 cites·7 claims
- 1392US5202301AProduct/process/application for removal of mercury from liquid hydrocarbonCALGON CARBON CORP·Filed 1989·Granted Apr 13, 1993·125 cites·3 claims
- 1491US11697091B2Sorbent devicesCALGON CARBON CORP·Filed 2020·Granted Jul 11, 2023·2 cites·29 claims
- 1591US10702853B2Chloramine and chlorine removal material and methods for making the sameCALGON CARBON CORP·Filed 2018·Granted Jul 7, 2020·14 cites·36 claims
- 1691US5492882AChromium-free impregnated activated universal respirator carbon for adsorption of toxic gases and/or vapors in industrial applicationsCALGON CARBON CORP·Filed 1993·Granted Feb 20, 1996·121 cites·19 claims
- 1790US12076687B2Sorbent devices for air intakesCALGON CARBON CORP·Filed 2020·Granted Sep 3, 2024·3 cites·20 claims
- 1890US6914034B2Adsorbents for removing heavy metals and methods for producing and using the sameCALGON CARBON CORP·Filed 2001·Granted Jul 5, 2005·55 cites·33 claims
- 1990US6682667B1Method for producing self-supporting activated carbon structuresCALGON CARBON CORP·Filed 2002·Granted Jan 27, 2004·43 cites·14 claims
- 2090US5733515APurification of air in enclosed spacesCALGON CARBON CORP·Filed 1996·Granted Mar 31, 1998·114 cites·8 claims
- 2190US5063196AChromium-free impregnated activated carbon for adsorption of toxic gases and/or vaporsCALGON CARBON CORP·Filed 1989·Granted Nov 5, 1991·89 cites·9 claims
- 2290US4540678ACarbon molecular sieves and a process for their preparation and useCALGON CARBON CORP·Filed 1983·Granted Sep 10, 1985·48 cites·13 claims
- 2390US4528281ACarbon molecular sieves and a process for their preparation and useCALGON CARBON CORP·Filed 1983·Granted Jul 9, 1985·62 cites·22 claims
- 2490US4465875AProcess for dehydrating ethanolCALGON CARBON CORP·Filed 1982·Granted Aug 14, 1984·34 cites·7 claims
- 2588US7507973B2UV treatment reactorCALGON CARBON CORP·Filed 2006·Granted Mar 24, 2009·16 cites·19 claims
- 2687US8834606B2Enhanced adsorbents and methods for mercury removalCALGON CARBON CORP·Filed 2013·Granted Sep 16, 2014·6 cites·15 claims
- 2786US12274997B2Sorbents for immersion coolingCALGON CARBON CORP·Filed 2022·Granted Apr 15, 2025·1 cites·38 claims
- 2886US11697090B2Sorbent devicesCALGON CARBON CORP·Filed 2019·Granted Jul 11, 2023·4 cites·18 claims
- 2986US5504050AProcess for making a catalytically-active carbonaceous charCALGON CARBON CORP·Filed 1995·Granted Apr 2, 1996·46 cites·12 claims
- 3084US12478948B2Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of useCALGON CARBON CORP·Filed 2024·Granted Nov 25, 2025·0 cites·5 claims
- 3184US6131368AMethod for packaging adsorbentsCALGON CARBON CORP·Filed 1998·Granted Oct 17, 2000·56 cites·15 claims
- 3284US5912423AMethod and means for purifying air with a regenerable carbon cloth sorbentCALGON CARBON CORP·Filed 1997·Granted Jun 15, 1999·71 cites·15 claims
- 3383US6342129B1Process for production of carbonaceous chars having catalytic activityCALGON CARBON CORP·Filed 1998·Granted Jan 29, 2002·86 cites·22 claims
- 3483US5338458AMethod for removing chloramine with catalytic carbonCALGON CARBON CORP·Filed 1993·Granted Aug 16, 1994·63 cites·6 claims
- 3582US6475386B1Filter for purifying domestic drinking waterCALGON CARBON CORP·Filed 2000·Granted Nov 5, 2002·36 cites·14 claims
- 3682US4526887ACarbon molecular sieves and a process for their preparation and useCALGON CARBON CORP·Filed 1983·Granted Jul 2, 1985·43 cites·18 claims
- 3781US11703016B2Sorbent devicesCALGON CARBON CORP·Filed 2019·Granted Jul 18, 2023·2 cites·18 claims
- 3881US9068745B2Methods for removal of mercury from flue gasCALGON CARBON CORP·Filed 2014·Granted Jun 30, 2015·3 cites·19 claims
- 3981US5350513AFlexible-walled absorberCALGON CARBON CORP·Filed 1992·Granted Sep 27, 1994·61 cites·22 claims
- 4080US9308518B2Enhanced sorbent formulation for removal of mercury from flue gasCALGON CARBON CORP·Filed 2013·Granted Apr 12, 2016·4 cites·21 claims
- 4179US6719001B2Fluid-directing multiport rotary valveCALGON CARBON CORP·Filed 2002·Granted Apr 13, 2004·25 cites·9 claims
- 4278US7429551B2Adsorbents for removing heavy metalsCALGON CARBON CORP·Filed 2004·Granted Sep 30, 2008·17 cites·7 claims
- 4378US6066257AProcess for the removal and destruction of perchlorate and nitrate from aqueous streamsCALGON CARBON CORP·Filed 1998·Granted May 23, 2000·80 cites·14 claims
- 4478US4629476ACarbon molecular sieves and a process for their preparation and useCALGON CARBON CORP·Filed 1985·Granted Dec 16, 1986·36 cites·14 claims
- 4577US4440548APressure swing absorption systemCALGON CARBON CORP·Filed 1982·Granted Apr 3, 1984·51 cites·15 claims
- 4677US2024075458A1Copper and nitrogen treated sorbent and method for making sameCALGON CARBON CORP·Filed 2023·Application pending·0 cites
- 4777US2024269647A1Sorbent and method of makingCALGON CARBON CORP·Filed 2024·Application pending·0 cites
- 4876US7429330B2Method for removing contaminants from fluid streamsCALGON CARBON CORP·Filed 2004·Granted Sep 30, 2008·22 cites·15 claims
- 4975US10220369B2Enhanced sorbent formulation for removal of mercury from flue gasCALGON CARBON CORP·Filed 2016·Granted Mar 5, 2019·1 cites·21 claims
- 5074US11857942B2Sorbents for removal of mercuryCALGON CARBON CORP·Filed 2019·Granted Jan 2, 2024·0 cites·2 claims
Showing the top 50 of 158 patent records by PatentIndex Score.
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