Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from ______________ to _______________ Commission File Number 001-35521 CLEARSIGN TECHNOLOGIES CORPORATION (Exact name of registrant as speci ...

TULSA, Okla., Nov. 12, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, announces that it has received a purchase order for a boiler burner for use in an asphalt company in California. "We are pleased to supply another in ...

Hosting Call at 5pm ET on Wednesday, November 20thTULSA, Okla., Nov. 6, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, announces on Wednesday, November 20, 2024, the Company will host a conference call at 5:00 PM ET. The C ...

TULSA, Okla., Oct. 29, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, announces that it has received an engineering order for a flare from an energy company for use in California. "The application of ClearSign Core tech ...

Presentation on Tuesday, October 29th at 4PM PT/7PM ET TULSA, Okla., Oct. 15, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, announces today that Jim Deller, Ph.D., Chief Executive Officer of ClearSign will be presentin ...

TULSA, Okla., Oct. 9, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that support decarbonization, improve operational and energy efficiency, enable the use of hydrogen as a fuel and enhance safety while dramatically reducing emissions, announces that it has received another burner order from Exotherm Corporation of Houston, Texas ("Exotherm") for installation in a heater in Missouri ...

ClearSign Technologies Corporation (CLIR) announced that its Ultra low NOx Burner Testing study, sponsored by the California Gas Emerging Technologies ("GET") Program, has yielded impressive results. This study conducted by ICF has helped CLIR reach a milestone in its objective to drive decarbonization and increase operational efficiency, positioning it as a leader in the transition to cleaner energy. ClearSign Technologies' Boiler Burner Study Highlights The study conducted by ICF evaluated the performance ...

TULSA, Okla., Sept. 10, 2024 /PRNewswire/ -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, announces that it has received a burner order from Exotherm Corporation of Houston, Texas ("Exotherm") for installation in a heater in Oklahoma for use by a power generation company. "We are grateful for this order, and ar ...

Exhibit 99.1 ClearSign Technologies Corporation Provides Second Quarter 2024 Update TULSA, Okla., August 21, 2024 -- ClearSign Technologies Corporation (Nasdaq: CLIR) ("ClearSign" or the "Company"), an emerging leader in industrial combustion and sensing technologies that improve energy, operational efficiency and safety while dramatically reducing emissions, today provides an update on operations for the quarter ended June 30, 2024. "The ClearSign business has advanced on multiple fronts during the past fe ...

ClearSign Technologies Corporation (CLIR) provides updates on second-quarter 2024 operations prior to hosting its investors' call. In the quarter ended on Jun 30, 2024, the company received two purchase orders to finish the entire engineering of burners for the conversion of two more process heaters at the California refinery, bringing the total to four burners. This initial engineering is expected to be followed by purchase orders for burner manufacturing and supply. ClearSign Technologies also announced t ...