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SUSTEON INC

Durham, NC · Clean tech · Private

Dual-function material and modular process for direct air capture of CO2 and conversion to renewable natural gas

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Updated · susteon.com

Sector
Clean tech
Headquarters
Durham, NC
Total capital
$3.8M
Federal grants
$3.8M
7 awards · 2019–2023
Rank in peer group#5 of 15
Private capital raised
None on recordNo Form D filings on SEC EDGAR. Some raises are not filed.
Federal contracts
None on recordNo federal contract awards found.
Granted patents
6
25 pending · first 2022
Rank in peer group#3 of 15

Capital timeline

20192020202120222023FEDERAL ↑EQUITY ↓Cumulative $3.8M$250K$200K$256K$1.6M$200K$1.1M
20192020202120222023FEDERAL ↑EQUITY ↓Cumulative $3.8M$250K$256K$1.6M$1.1M

Latest events

  • Federal grantEnergy · Phase II · Dual Function Materials for Direct Air Capture of CO2$1.1M
  • Federal grantEnergy · Phase I · Argon-Selective CMS for High Purity Oxygen Production$200K
  • Federal grantEnergy · Phase II · Dual Function Materials for Direct Air Capture of CO2$1.6M
  • Federal grantNSF · Phase I · SBIR Phase I: A GREEN PROCESS FOR LOW-COST PRODUCTION OF SILICON CARBIDE FROM WASTE SILICON$256K
  • Federal grantEnergy · Phase I · Low Temperature Plasma and Nanoparticle Catalyzed Steam Methane Reforming to Produce Hydrogen$200K
  • Federal grantEnergy · Phase I · Dual Function Materials for Direct Air Capture of CO2$250K
  • Federal grantEnergy · Phase I · A Novel Catalytic Reactor For Conversion Of CO2 Into Benzene$150K

Node area is scaled to amount. Form D reports securities sold, which can differ from an announced round; filings are numbered in the order they were made.

Standing among 15 peers

Line = median

Clean tech · Material

  • Federal grants#5 · top 33%
  • Granted patents#3 · top 20%

Cumulative measures favor older companies. Rankings describe position today, not outcome. Below the median, ranks show as a band rather than a number.

Founders and team

No founders are linked to this company yet.

Founders appear once a person is matched to the company through its own patents, grants or filings. We never infer people from social profiles.

Checked: USPTO inventors; federal award principal investigators; SEC Form D related persons · Oct 23, 2026

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What it has protected

USPTO · 6 granted of 31
Show all 31 patent records
  • Electrically Heated Substrates, Assemblies, Systems, And Processes For Catalytic, Chemical, And Sorbent ApplicationsOct 20, 2026 · US 12,766,494Granted
  • Semi-Continuous Process for Co-Production of CO2-Free Hydrogen and High Value Carbon via Hydrocarbon PyrolysisMar 19, 2026 · Application 19149469Pending
  • High Performance CO2 Capture Solvent Compositions, And CO2 Capture Systems And Processes Utilizing SameJan 20, 2026 · US 12,528,046Granted
  • Electrically Heated Substrates, Assemblies, Systems, And Processes For Catalytic, Chemical, And Sorbent ApplicationsJan 8, 2026 · Application 19323977Pending
  • CO2 Concentrator And Related Materials, Processes, And SystemsDec 18, 2025 · Application 19238440Pending
  • Electrically Heated Substrates, Assemblies, Systems, And Processes For Catalytic, Chemical, And Sorbent ApplicationsSep 9, 2025 · US 12,409,446Granted
  • Continuous Desulfurization Process Based On Metal Oxide-based Regenerable SorbentsMar 25, 2025 · US 12,258,527Granted
  • High Performance CO2 Capture Solvent Compositions, And CO2 Capture Systems And Processes Utilizing SameDec 24, 2024 · US 12,172,125Granted
  • CO2 Capture Sorbents With Low Regeneration Temperature And High Desorption RatesJan 11, 2024 · Application 18042161Pending
  • Production Of High Purity Particulate Silicon Carbide By Hydrocarbon PyrolysisDec 22, 2022 · Application 17777044Pending
  • Carbonation System For Curing Of Concrete Products At Ambient PressureJul 21, 2022 · Application 17572448Pending
  • Continuous Desulfurization Process Based On Metal Oxide-based Regenerable SorbentsJan 18, 2022 · US 11,225,618Granted
  • Materials, Systems, And Processes For Production Of High Purity OxygenApplication 63286541Pending
  • Catalytic Non-thermal Plasma-assisted Conversion Apparatus And MethodApplication 63246338Pending
  • CO2 Capture Sorbents With Low Regeneration Temperature And High Desorption RatesApplication PCTUS2021046103Pending
  • Systems And Processes For Removal Of Carbon Dioxide (CO2) From CO2-CONTAINING Gases Using Alkali Metal AbsorbentsApplication 63183751Pending
  • Direct Air Capture CO2 Removal System And ProcessApplication 63158807Pending
  • Production Of High Purity Particulate Silicon Carbide By Hydrocarbon PyrolysisApplication PCTUS2020060600Pending
  • CO2 Capture Sorbents With Low Regeneration Temperature And High Desorption RatesApplication 63066460Pending
  • Continuous Desulfurization Process Based On Metal Oxide-based Regenerable SorbentsApplication PCTUS2020015432Pending
  • Direct Methane Pyrolysis To Hydrogen And Silicon CarbideApplication 62935930Pending
  • Continuous Desulfurization Process Based On Metal Oxide-based Regenerable SorbentsApplication 62797541Pending
  • Use Of Oxidants For Stable Production Of Hydrogen And High Value Carbon From Hydrocarbon PyrolysisApplication PCTUS2025026512Pending
  • CO2 Concentrator And Related Materials, Processes, And SystemsApplication PCTUS2025033689Pending
  • Electrically Heated Substrates, Assemblies, Systems, And Processes For Catalytic, Chemical, And Sorbent ApplicationsApplication PCTUS2024043114Pending
  • High Performance CO2 Capture Solvent Compositions, And CO2 Capture Systems And Processes Utilizing SameApplication PCTUS2024039232Pending
  • CO2 Concentrator And Related Materials, Processes, And SystemsApplication 63660291Pending
  • Electrically Heated Substrates For Catalytic And Sorbent ApplicationsApplication 63520637Pending
  • High Performance CO2 Capture SolventApplication 63516443Pending
  • Semi-Continuous Process for Co-Production of CO2-Free Hydrogen and High Value Carbon via Hydrocarbon PyrolysisApplication 63480875Pending
  • Catalytic Non-thermal Plasma Assisted Conversion Apparatus And MethodApplication PCTUS2022076756Pending

Related companies, and why

Regulatory activity · Clean tech

Sector-level, not company-level

Rules are matched to sector, not to company. Recent activity in a sector is context rather than a signal about this business — until rules are matched to what a company actually builds, the section is shown as context and nothing more.

Sources

Federal grants from SBIR/STTR, NIH, NSF and DoD records. Federal contracts from USAspending.gov. Private capital from SEC Form D. Patents from USPTO. Publications from OpenAlex. Regulatory activity from the Federal Register. Press matched on company name.

How to read this page

Figures show associations in public records, not causes or predictions. Nothing here is investment advice. An em-dash means no record was found under this company's name, not that none exists.

Data freshness

SEC Form D filings through . SBIR and STTR awards through .