Inventor · disambiguated record
Daniel J. Despen
Also filed as: DESPEN DANIEL J
39 granted patents·17 pending applications·673 citations·filing 2012–2025
98Inventor score
Files withCARBON TECH HOLDINGS LLC47BIOGENIC REAGENTS VENTURES LLC3MENNELL JAMES A3BIOGENIC REAGENT VENTURES LLC2DESPEN DANIEL J1
Top patents by PatentIndex Score
56 records- 0198US11965139B2Systems and apparatus for production of high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2022·Granted Apr 23, 2024·2 cites·19 claims
- 0298US11413601B2Halogenated activated carbon compositions and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2015·Granted Aug 16, 2022·21 cites·6 claims
- 0398US11359154B2Systems and apparatus for production of high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2020·Granted Jun 14, 2022·4 cites·18 claims
- 0498US11285454B2Biogenic activated carbon and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2019·Granted Mar 29, 2022·27 cites·16 claims
- 0598US11286440B2Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisCARBON TECH HOLDINGS LLC·Filed 2020·Granted Mar 29, 2022·37 cites·3 claims
- 0698US11091716B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2017·Granted Aug 17, 2021·38 cites·6 claims
- 0798US10982161B2Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2018·Granted Apr 20, 2021·39 cites·30 claims
- 0898US10611977B2Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisCARBON TECH HOLDINGS LLC·Filed 2017·Granted Apr 7, 2020·40 cites·20 claims
- 0998US10174267B2Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2016·Granted Jan 8, 2019·57 cites·81 claims
- 1098US10167437B2Systems and apparatus for production of high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2016·Granted Jan 1, 2019·41 cites·21 claims
- 1198US9845440B2Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisMENNELL JAMES A·Filed 2012·Granted Dec 19, 2017·52 cites·8 claims
- 1298US9388355B2Process for producing high-carbon biogenic reagentsMENNELL JAMES A·Filed 2012·Granted Jul 12, 2016·60 cites·17 claims
- 1398US9388046B2Systems and apparatus for production of high-carbon biogenic reagentsMENNELL JAMES A·Filed 2012·Granted Jul 12, 2016·54 cites·4 claims
- 1497US10889775B2Systems and apparatus for production of high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2018·Granted Jan 12, 2021·5 cites·19 claims
- 1597US9752090B2High-carbon biogenic reagents and uses thereofBIOGENIC REAGENTS VENTURES LLC·Filed 2014·Granted Sep 5, 2017·47 cites·17 claims
- 1696US9724667B2Carbon micro-plantBIOGENIC REAGENTS VENTURES LLC·Filed 2015·Granted Aug 8, 2017·46 cites·12 claims
- 1796US9475031B2Carbon micro-plantBIOGENIC REAGENTS VENTURES LLC·Filed 2015·Granted Oct 25, 2016·41 cites·58 claims
- 1896US8920525B2High-carbon biogenic reagents and uses thereofDESPEN DANIEL J·Filed 2012·Granted Dec 30, 2014·57 cites·12 claims
- 1996US2025075141A1Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 2095US11674101B2Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2021·Granted Jun 13, 2023·2 cites·10 claims
- 2194US12151226B2Biogenic activated carbon and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2020·Granted Nov 26, 2024·2 cites·1 claims
- 2294US2024271052A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 2393US12441947B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2023·Granted Oct 14, 2025·0 cites·26 claims
- 2493US2024132795A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 2593US2024263095A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 2691US12297399B2Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2023·Granted May 13, 2025·0 cites·11 claims
- 2790US2025196101A1Methods and apparatus for producing activated carbon from biomass through carbonized ash intermediatesCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 2889US2023159840A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 2989US2024139707A1Biogenic activated carbon and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 3088US2024082813A1Biogenic activated carbon and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 3187US2025257277A1Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 3287US2025257278A1Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 3385US12297398B2Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisCARBON TECH HOLDINGS LLC·Filed 2022·Granted May 13, 2025·0 cites·13 claims
- 3485US2025277157A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 3584US12208369B2Halogenated activated carbon compositions and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2022·Granted Jan 28, 2025·0 cites·19 claims
- 3684US12208368B2Halogenated activated carbon compositions and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2022·Granted Jan 28, 2025·0 cites·37 claims
- 3783US12351770B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Jul 8, 2025·0 cites·6 claims
- 3883US12239953B2Biogenic porous carbon silicon dioxide compositionsCARBON TECH HOLDINGS LLC·Filed 2019·Granted Mar 4, 2025·1 cites·14 claims
- 3983US11959038B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Apr 16, 2024·0 cites·2 claims
- 4083US11891582B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Feb 6, 2024·0 cites·14 claims
- 4183US11879107B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Jan 23, 2024·0 cites·12 claims
- 4282US12497570B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Dec 16, 2025·0 cites·10 claims
- 4382US12404471B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Sep 2, 2025·0 cites·18 claims
- 4482US12404472B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Sep 2, 2025·0 cites·10 claims
- 4582US12296316B2Highly mesoporous activated carbonCARBON TECH HOLDINGS LLC·Filed 2022·Granted May 13, 2025·0 cites·4 claims
- 4682US12084623B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Sep 10, 2024·0 cites·1 claims
- 4782US2025256260A1Highly mesoporous activated carbonCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 4877US2025256259A1Halogenated activated carbon compositions and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 4972US2025196093A1Biogenic porous carbon silicon dioxide compositions and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 5066US12350648B2Methods and apparatus for producing activated carbon from biomass through carbonized ash intermediatesCARBON TECH HOLDINGS LLC·Filed 2014·Granted Jul 8, 2025·0 cites·29 claims
Showing the top 50 of 56 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →