28 results
8-K
EX-99.1
CLIR
ClearSign Technologies Corp
24 Apr 24
ClearSign Technologies Corporation Announces Closing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
, whether changes in greenhouse gas emission control applicable federal and state laws and regulations, the performance of the Company’s management
424B5
CLIR
ClearSign Technologies Corp
23 Apr 24
Prospectus supplement for primary offering
6:02am
is a regulated greenhouse gas pollutant comprised of nitrogen oxide and nitrogen dioxide. These current technologies include selective catalytic reduction … required by new emission regulations. NOx is a regulated greenhouse gas pollutant comprised of nitrogen oxide and nitrogen dioxide. These current
8-K
EX-99.1
CLIR
ClearSign Technologies Corp
19 Apr 24
ClearSign Technologies Corporation Announces Pricing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
Boiler results in purchase orders from the customer, whether changes in greenhouse gas emission control applicable federal and state laws
424B5
CLIR
ClearSign Technologies Corp
19 Apr 24
Prospectus supplement for primary offering
6:02am
technologies, and can reduce nitrogen oxide (NOx) emissions down to the levels required by new stringent emission regulations. NOx is a regulated greenhouse gas pollutant … pollution control technologies, which reduce NOx down to the levels required by new emission regulations. NOx is a regulated greenhouse gas pollutant
424B5
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18 Mar 24
Prospectus supplement for primary offering
6:05am
8-K
EX-99.1
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22 Sep 23
Receives Support and Collaboration from SoCalGas for its Flexible Hydrogen Fueled Ultra Low NOx Process Burner Project
4:05pm
424B3
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1 Sep 23
Prospectus supplement
4:15pm
8-K
EX-99.2
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24 May 23
ClearSign Technologies Corporation Provides First Quarter 2023 Update
6:08am
424B5
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31 May 22
Prospectus supplement for primary offering
4:43pm
424B5
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26 May 22
Prospectus supplement for primary offering
4:22pm
424B5
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23 Dec 20
Prospectus supplement for primary offering
5:11pm
424B2
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21 Aug 20
Prospectus for primary offering
5:11pm
424B2
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19 Aug 20
Prospectus for primary offering
4:05pm