ClearSign Technologies Corporation Watch

from 8-K 16 pages Pre-Funded Common Stock Purchase Warrant ClearSign Technologies Corporation

from 8-K 15 pages ClearSign Technologies Corporation Placement Agent Warrant Shares of Common Stock , 2024

from 8-K 13 pages Redeemable Common Stock Purchase Warrant ClearSign Technologies Corporation

from 8-K 15 pages ClearSign Technologies Corporation Underwriter Warrant Shares of Common Stock , 2024

from 8-K 13 pages Redeemable Common Stock Purchase Warrant ClearSign Technologies Corporation

from 10-K 4 pages Description of Securities

from S-3 1 page Number Shares Cert.9999 Incorporated Under the Laws of Delaware *******9,000,000,000******* Common Stock Cusip 999999zz9 This Certifies That * Specimen * Is the Owner of * Nine Billion and 00/100 * Fully Paid and Non-Assessable Shares of Common Stock of ClearSign Technologies Corporation Transferable on the Books of the Corporation by the Holder Hereof, in Person or by Duly Authorized Attorney, Upon Surrender of This Certificate Properly Endorsed. This Certificate Is Not Valid Unless Countersigned by the Transfer Agent and Registered Bythe Registrar

from S-3 51 pages Form of ClearSign Technologies Corporation Indenture Dated as of [ ] [Name of Trustee] as Trustee

from 10-K 1 page Description of the Registrant’s Securities Registered Pursuant to Section 12 of the Securities Exchange Act of 1934

from S-3 39 pages Form of ClearSign Combustion Corporation Indenture Dated as of [ ] [Name of Trustee] as Trustee

from 8-K/A 19 pages Warrant Agreement

from 8-K 19 pages Warrant Agreement

from 10-K 1 page Indenture or similar

from POS AM 13 pages ClearSign Combustion Corporation Underwriter Warrant 300,000 Shares of Common Stock April 24, 2012

from S-1/A 13 pages ClearSign Combustion Corporation Underwriter Warrant Shares of Common Stock , 2012

from S-1 19 pages ClearSign Combustion Corporation Warrant to Purchase Shares of Common Stock