Inventor · disambiguated record
James A. Mennell
Also filed as: MENNELL JAMES A
47 granted patents·51 pending applications·742 citations·filing 2009–2025
98Inventor score
Files withCARBON TECH HOLDINGS LLC79MENNELL JAMES A9BIOGENIC REAGENT VENTURES LLC3BIOGENIC REAGENTS VENTURES LLC3RENEWAFUEL LLC2
Top patents by PatentIndex Score
98 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
- 1497US12103892B2Biocarbon compositions with optimized compositional parameters, and processes for producing the sameCARBON TECH HOLDINGS LLC·Filed 2022·Granted Oct 1, 2024·13 cites·6 claims
- 1597US11851723B2Carbon-negative metallurgical productsCARBON TECH HOLDINGS LLC·Filed 2022·Granted Dec 26, 2023·22 cites·10 claims
- 1697US11753698B2Bio-reduction of metal ores integrated with biomass pyrolysisCARBON TECH HOLDINGS LLC·Filed 2021·Granted Sep 12, 2023·18 cites·24 claims
- 1797US10889775B2Systems and apparatus for production of high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2018·Granted Jan 12, 2021·5 cites·19 claims
- 1897US9752090B2High-carbon biogenic reagents and uses thereofBIOGENIC REAGENTS VENTURES LLC·Filed 2014·Granted Sep 5, 2017·47 cites·17 claims
- 1996US11987763B2Processes for producing biocarbon pellets with high fixed-carbon content and optimized reactivity, and biocarbon pellets obtained therefromCARBON TECH HOLDINGS LLC·Filed 2022·Granted May 21, 2024·15 cites·39 claims
- 2096US9724667B2Carbon micro-plantBIOGENIC REAGENTS VENTURES LLC·Filed 2015·Granted Aug 8, 2017·46 cites·12 claims
- 2196US9475031B2Carbon micro-plantBIOGENIC REAGENTS VENTURES LLC·Filed 2015·Granted Oct 25, 2016·41 cites·58 claims
- 2296US8920525B2High-carbon biogenic reagents and uses thereofDESPEN DANIEL J·Filed 2012·Granted Dec 30, 2014·57 cites·12 claims
- 2396US2025075141A1Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 2495US11674101B2Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2021·Granted Jun 13, 2023·2 cites·10 claims
- 2594US12151226B2Biogenic activated carbon and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2020·Granted Nov 26, 2024·2 cites·1 claims
- 2694US2024271052A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 2793US12441947B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2023·Granted Oct 14, 2025·0 cites·26 claims
- 2893US2024132795A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 2993US2024263095A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 3092US11932814B2Biocarbon blends with optimized fixed carbon content, and methods for making and using the sameCARBON TECH HOLDINGS LLC·Filed 2022·Granted Mar 19, 2024·1 cites·4 claims
- 3191US12297399B2Process for producing high-carbon biogenic reagentsCARBON TECH HOLDINGS LLC·Filed 2023·Granted May 13, 2025·0 cites·11 claims
- 3290US2025196101A1Methods and apparatus for producing activated carbon from biomass through carbonized ash intermediatesCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 3389US2023159840A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 3489US2024139707A1Biogenic activated carbon and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 3589US2025388814A1Biocarbon blends with optimized fixed carbon content, and methods for making and using the sameCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 3688US2024082813A1Biogenic activated carbon and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 3787US12398435B2Carbon-negative metallurgical productsCARBON TECH HOLDINGS LLC·Filed 2023·Granted Aug 26, 2025·0 cites·10 claims
- 3887US2025084495A1Carbon-negative metallurgical productsCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 3987US2025257277A1Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 4087US2025257278A1Methods and apparatus for enhancing the energy content of carbonaceous materials from pyrolysisCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 4185US12297398B2Methods 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
- 4285US2025277157A1High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2025·Application pending·0 cites
- 4384US12208369B2Halogenated activated carbon compositions and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2022·Granted Jan 28, 2025·0 cites·19 claims
- 4484US12208368B2Halogenated activated carbon compositions and methods of making and using sameCARBON TECH HOLDINGS LLC·Filed 2022·Granted Jan 28, 2025·0 cites·37 claims
- 4584US2024101906A1Biocarbon blends with optimized fixed carbon content, and methods for making and using the sameCARBON TECH HOLDINGS LLC·Filed 2023·Application pending·0 cites
- 4684US2024294997A1Carbon-negative metallurgical productsCARBON TECH HOLDINGS LLC·Filed 2024·Application pending·0 cites
- 4783US12351770B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Jul 8, 2025·0 cites·6 claims
- 4883US12239953B2Biogenic porous carbon silicon dioxide compositionsCARBON TECH HOLDINGS LLC·Filed 2019·Granted Mar 4, 2025·1 cites·14 claims
- 4983US11959038B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Apr 16, 2024·0 cites·2 claims
- 5083US11891582B2High-carbon biogenic reagents and uses thereofCARBON TECH HOLDINGS LLC·Filed 2021·Granted Feb 6, 2024·0 cites·14 claims
Showing the top 50 of 98 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →