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ClearSign Combustion CorporationClearSign Combustion CorporationClearSign Combustion CorporationClearSign Combustion Corporation
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Our patented technologies, embedded in established OEM products as ClearSign Core™, and ClearSign Eye™ and other sensing configurations, enhance the performance of combustion systems and fuel safety systems in a broad range of markets, including the energy (upstream oil production and down-stream refining), commercial/industrial boiler, chemical, petrochemical, transport and power industries.

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YearTrailing 12-MonthsCalendar Year 2023Calendar Year 2022Calendar Year 2021Calendar Year 2020Calendar Year 2019Calendar Year 2018Calendar Year 2017Calendar Year 2016Calendar Year 2015Calendar Year 2014Calendar Year 2013Calendar Year 2012Calendar Year 2011Calendar Year 2008
ViewAll FilingsAnnual FilingsQuarterly FilingsCurrent FilingsRegistration StatementsSection 16Proxy & Information StatementsOther
FormDescriptionDateFormat
S-1/AAmended Registration statement for face-amount certificate companiesDec 28, 2011Open Amended Registration statement for face-amount certificate companies in HTML.Open Amended Registration statement for face-amount certificate companies in DOC file.Open Amended Registration statement for face-amount certificate companies in PDF file.Open Amended Registration statement for face-amount certificate companies in XLS file.
UPLOADCorrespondence from the SEC to the FilerDec 12, 2011Open Correspondence from the SEC to the Filer in HTML.Open Correspondence from the SEC to the Filer in DOC file.Open Correspondence from the SEC to the Filer in PDF file.Open Correspondence from the SEC to the Filer in XLS file.
S-1Registration statement for face-amount certificate companiesNov 14, 2011Open Registration statement for face-amount certificate companies in HTML.Open Registration statement for face-amount certificate companies in DOC file.Open Registration statement for face-amount certificate companies in PDF file.Open Registration statement for face-amount certificate companies in XLS file.
DOfficial notice of an offering of securities that is made without registration under the Securities Act in reliance on an exemption provided by Regulation D and Section 4(6) under the ActMar 18, 2011Open Official notice of an offering of securities that is made without registration under the Securities Act in reliance on an exemption provided by Regulation D and Section 4(6) under the Act in HTML.Open Official notice of an offering of securities that is made without registration under the Securities Act in reliance on an exemption provided by Regulation D and Section 4(6) under the Act in DOC file.Open Official notice of an offering of securities that is made without registration under the Securities Act in reliance on an exemption provided by Regulation D and Section 4(6) under the Act in PDF file.Open Official notice of an offering of securities that is made without registration under the Securities Act in reliance on an exemption provided by Regulation D and Section 4(6) under the Act in XLS file.
D/AAmendment to a previously filed Form DFeb 3, 2011Open Amendment to a previously filed Form D in HTML.Open Amendment to a previously filed Form D in DOC file.Open Amendment to a previously filed Form D in PDF file.Open Amendment to a previously filed Form D in XLS file.
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  • Investors Home
  • News / Events
    • Company News
    • Events and Webcasts
    • Email Alerts
  • Company Information
    • Profile
    • FAQs
    • IR Contacts
    • Presentations
  • Stock Information
    • Stock Quote
    • Charts
    • Historical Data
  • Financial Information
    • Financials
    • Annual Reports
    • Proxy
  • SEC Filings
    • All SEC Filings
    • Section 16 Filings
  • Corporate Governance
    • Board of Directors
    • Board Committees
    • Governance Documents
ClearSign Combustion Corporation