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Sales, Contract Assets and Contract Liabilities	12 Months Ended
	Dec. 31, 2019
Sales, Contract Assets and Contract Liabilities
Sales, Contract Assets and Contract Liabilities	Note 5 – Sales, Contract Assets and Contract Liabilities The Company recognized no revenue during the year ended December 31, 2019. During 2018, the Company recognized revenue totaling $360,000 from completed flare projects, $128,000 of revenue from completion of a once through steam generator (OTSG) project and revenue of $42,000 from a small project. To date, all of the Company’s sales have been Duplex or ClearSign Core products sold in the United States. The cost of goods sold of $1,000 recognized during the year ended December 31, 2019 related to additional warranty costs incurred for previously completed contracts.

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No definition available.

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- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-URI http://asc.fasb.org/topic&trid=49130388

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