ClearSign designs, develops and markets technologies that aim to improve the key performance characteristics of combustion systems, including emission, operational performance, energy efficiency and overall cost effectiveness.
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| Form | Description | Date | Format |
|---|---|---|---|
| 4 | Statement of changes in beneficial ownership of securities | Dec 6, 2017 |    |
| RW | Withdrawal of registration statement filed under the Securities Act | Dec 6, 2017 |  |
| S-1/A | Amended Registration statement for face-amount certificate companies | Nov 27, 2017 | |
| 8-K | Report of unscheduled material events or corporate event | Nov 17, 2017 | |
| 10-Q | Quarterly report which provides a continuing view of a company's financial position | Nov 9, 2017 |   |
| S-1 | Registration statement for face-amount certificate companies | Nov 9, 2017 | |
| 8-K | Report of unscheduled material events or corporate event | Nov 2, 2017 | |
| 8-K | Report of unscheduled material events or corporate event | Sep 8, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Sep 8, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Aug 23, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Aug 22, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Aug 22, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Aug 21, 2017 | |
| 8-K | Report of unscheduled material events or corporate event | Aug 15, 2017 | |
| 10-Q | Quarterly report which provides a continuing view of a company's financial position | Aug 14, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Jun 28, 2017 | |
| 8-K | Report of unscheduled material events or corporate event | Jun 27, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Jun 27, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Jun 27, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Jun 27, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | Jun 27, 2017 | |
| 3 | Initial filing by director officer or owner of more than ten percent. | May 16, 2017 | |
| 4 | Statement of changes in beneficial ownership of securities | May 11, 2017 | |
| 8-K | Report of unscheduled material events or corporate event | May 11, 2017 | |
| 10-Q | Quarterly report which provides a continuing view of a company's financial position | May 11, 2017 | |
| 1-25 26-50 51-60 | |||