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Ebb Carbon, Inc.

SAN CARLOS, CA · Founded 2021 · Clean tech · Private

Desalination brine treatment system that extracts freshwater, sequesters carbon, and recovers industrial products

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Updated · ebbcarbon.com

Sector
Clean tech
Headquarters
SAN CARLOS, CA
Founded
2021
Latest Form D
$10M, Apr 2023
Total capital
$23.8M
Federal grants
None on recordNo awards found in SBIR/STTR, NIH, NSF or DoD records.
Private capital raised
$23.8M
3 Form D · last Apr 2023
43 months since last filing
Federal contracts
None on recordNo federal contract awards found.
Granted patents
6
16 pending · first 2023
Rank in peer group#20 of 222

Capital timeline

202120222023FEDERAL ↑EQUITY ↓Cumulative $23.8M1st Form D$3M2nd Form D$10.8M3rd Form D$10M
202120222023FEDERAL ↑EQUITY ↓Cumulative $23.8M1st Form D$3M2nd Form D$10.8M3rd Form D$10M

Latest events

  • Private capital raisedForm D · SEC · 3rd filing$10M
  • Private capital raisedForm D · SEC · 2nd filing$10.8M
  • Private capital raisedForm D · SEC · 1st filing$3M

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 222 peers

Line = median

Clean tech · System

  • Granted patents#20 · top 9%

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

From SEC Form D filings
  • Ben TarbellExecutive Officer, DirectorNamed in SEC Form D filings
  • Gabriel KraDirectorNamed in SEC Form D filings
  • Kevin TidwellDirectorNamed in SEC Form D filings
  • Matthew EisamanExecutive Officer, DirectorNamed in SEC Form D filings
  • Mike BiddleDirectorNamed in SEC Form D filings

What it has protected

USPTO · 6 granted of 22
  • PendingIntegrated Ocean Alkalinity Enhancement And Seawater DesalinationUSPTOApplication 19092576
  • GrantedOcean Alkalinity Release APPARATUS AND METHODUSPTOUS 12,448,309
  • PendingIntegrated Divalent Ion Precipitation And Bipolar Electrodialysis ReactorUSPTOApplication 18910483
Show all 22 patent records
  • Integrated Ocean Alkalinity Enhancement And Seawater DesalinationNov 6, 2025 · Application 19092576Pending
  • Ocean Alkalinity Release APPARATUS AND METHODOct 21, 2025 · US 12,448,309Granted
  • Integrated Divalent Ion Precipitation And Bipolar Electrodialysis ReactorJul 10, 2025 · Application 18910483Pending
  • Ocean Alkalinity System And Method For Capturing Atmospheric Carbon DioxideApr 1, 2025 · US 12,264,084Granted
  • In-Situ Acid Neutralization And Carbon MineralizationFeb 20, 2025 · Application 18935082Pending
  • In-Situ Acid Neutralization And Carbon MineralizationDec 24, 2024 · US 12,172,910Granted
  • OAE System With Controlled Acid NeutralizationNov 5, 2024 · US 12,134,574Granted
  • Production Efficiency Optimization For Bipolar Electrodialysis DeviceOct 10, 2024 · Application 18131839Pending
  • Ocean Alkalinity System And Method For Capturing Atmospheric Carbon DioxideMar 5, 2024 · US 11,919,785Granted
  • Measurement, Reporting, And Verification (MRV) For Ocean Carbon Dioxide Removal SystemsFeb 8, 2024 · Application 18228399Pending
  • Ocean Alkalinity System And Method For Capturing Atmospheric Carbon DioxideApr 18, 2023 · US 11,629,067Granted
  • Ocean Alkalinity Release Apparatus And MethodApplication PCTUS2025014107Pending
  • Integrated Ocean Alkalinity Enhancement And Seawater DesalinationApplication 63716029Pending
  • Integrated Ocean Alkalinity Enhancement And Seawater DesalinationApplication PCTUS2025022798Pending
  • Integrated Divalent Ion Precipitation And Bipolar Electrodialysis ReactorApplication 63618782Pending
  • Measurement, Reporting, And Verification (mrv) For Ocean Carbon Dioxide Removal SystemsApplication PCTUS2023029247Pending
  • Ocean Alkalinity Release APPARATUS AND METHODApplication 63556837Pending
  • Oae System With Controlled Acid NeutralizationApplication PCTUS2024022213Pending
  • In-situ Acid Neutralization And Carbon MineralizationApplication PCTUS2024022219Pending
  • Production Efficiency Optimization For Bipolar Electrodialysis DeviceApplication PCTUS2024022268Pending
  • Ocean Alkalinity System And Method For Capturing Atmospheric Carbon DioxideApplication PCTUS2022052423Pending
  • Electrochemical Assisted Ocean WeatheringApplication 63641910Pending

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 .