For the Inventor, By the Inventor

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Oakdale, MN, United States of America

Carbon Technology Holdings, LLC

USPTO Granted Patents = 82

CIPO Patents = 1

EPO Patents = 5

Trademarks = 3

Forward Citations = 657

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32 inventors (with patents filed for the assignee):

James A Mennell (65 out of 69 patents)

Daniel J Despen (49 out of 53 patents)

Steve Filips (21 out of 22 patents)

4. Daren Einar Daugaard (18 out of 24 patents)

5. Dustin Slack (17 out of 17 patents)

6. Han Suk Kim (16 out of 43 patents)

7. Brian Buege (12 out of 22 patents)

8. Richard Wilson Belcher (11 out of 28 patents)

9. David Reamer (8 out of 9 patents)

10. Ranko Panayotov Bontchev (8 out of 22 patents)

11. Mark Lahman Jarand (8 out of 30 patents)

12. Vern S Traxler (7 out of 19 patents)

13. Juliette MacKay (6 out of 9 patents)

14. Ronald A Sills (6 out of 25 patents)

15. Rajashekharam Malyala (5 out of 31 patents)

Core Competencies:

Activated Carbon

Biogenic Reagents

Biochar

Carbon Micro-Plant

Pyrolysis

Environmental Impact

Biocarbon Blends

Water Treatment

Microbial Carrier

Energy Content Enhancement

Metallurgical Products

Biodegradable Materials

82 patents: Sort by Forward Citations

1. 12753359 - Water-resistant and durable biocarbon pellets, and methods for making and using the same (2026-10-06),

2. 12723211 - High-carbon biogenic reagents and uses thereof (2026-09-01),

3. 12703832 - Water-resistant and durable biocarbon pellets, and methods for making and using the same (2026-08-11),

4. 12680044 - High-carbon biogenic reagents and uses thereof (2026-07-14),

5. 12674110 - High-carbon biogenic reagents and uses thereof (2026-07-07),

6. 12674109 - High-carbon biogenic reagents and uses thereof (2026-07-07),

7. 12674108 - High-carbon biogenic reagents and uses thereof (2026-07-07),

8. 12662641 - High-carbon biogenic reagents and uses thereof (2026-06-23),

9. 12662633 - Low-water-intensity biocarbon products, and processes for producing low-water-intensity biocarbon products (2026-06-23),

10. 12655487 - Carbon-negative metallurgical products (2026-06-16),

11. 12655362 - Biocarbon pellets with adjustable grindability index (2026-06-16),

12. 12655061 - Biocarbon compositions with optimized compositional parameters, and processes for producing the same (2026-06-16),

13. 12649959 - Biomass pyrolysis integrated with bio-reduction of metal ores, hydrogen production, and/or activated-carbon production (2026-06-09),

14. 12611649 - Biogenic activated carbon and methods of making and using same (2026-04-28),

15. 12605691 - Carbon micro-plant (2026-04-21),

Company Overview

Carbon Technology Holdings, LLC, based in Oakdale, MN, specializes in biogenic carbon technology, focusing on sustainable solutions for environmental challenges. The company develops and manufactures activated carbon, biogenic reagents, and biochar, utilizing advanced pyrolysis processes to create innovative carbon micro-plants. Their technologies aim to enhance water treatment and promote environmental impact reduction through biocarbon blends, contributing to a greener future and effective resource management.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

82 Patents

#2 in Oakdale, MN

#124 in Minnesota

#4,528 in US

#9,264 in the World

Oakdale, MN, United States of America

Carbon Technology Holdings, LLC

Forward Citations = 657

32 inventors:

James A Mennell (65 out of 69 patents)

Daniel J Despen (49 out of 53 patents)

Steve Filips (21 out of 22 patents)

4. Daren Einar Daugaard (18 out of 24 patents)

5. Dustin Slack (17 out of 17 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Carbon Technology Holdings, LLC. Retrieved from https://idiyas.com/company/carbon-technology-holdings

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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