ClearSign Technologies Corp — CORRESP Filings
12 CORRESP filings on record
This page lists all CORRESP filings submitted to the SEC by ClearSign Technologies Corp (CLIR), sorted by most recent first. Each row links to the full filing on EdgarLookup. ClearSign Technologies Corp has filed 12 CORRESP documents with the SEC since 2008. To view all SEC filings by ClearSign Technologies Corp, see the full filings list.
All
10-K
10-K/A
10-Q
10-Q/A
25-NSE
3
4
4/A
424B1
424B2
424B3
424B4
424B5
5
8-A12B
8-A12B/A
8-K
8-K/A
ARS
CERTNAS
CORRESP
D
D/A
DEF 14A
DEFA14A
DEFR14A
EFFECT
FWP
NT 10-Q
POS AM
PRE 14A
PREC14A
PREN14A
PRRN14A
REGDEX
RW
S-1
S-1/A
S-3
S-3/A
S-8
S-8 POS
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SCHEDULE 13D/A
SCHEDULE 13G
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| CORRESP | — | 0001104659-25-080995 | Aug 20, 2025 | — |
| CORRESP | — | 0001104659-25-070368 | Jul 24, 2025 | — |
| CORRESP | — | 0001558370-24-014883 | Nov 7, 2024 | — |
| CORRESP | — | 0001104659-24-078962 | Jul 10, 2024 | — |
| CORRESP | — | 0001104659-22-088220 | Aug 10, 2022 | — |
| CORRESP | — | 0001104659-22-080892 | Jul 19, 2022 | — |
| CORRESP | — | 0001104659-21-153186 | Dec 23, 2021 | — |
| CORRESP | — | 0001144204-19-034318 | Jul 10, 2019 | — |
| CORRESP | — | 0001144204-18-049969 | Sep 19, 2018 | — |
| CORRESP | — | 0001144204-16-073957 | Jan 5, 2016 | — |
| CORRESP | — | 0001144204-12-023032 | Apr 20, 2012 | — |
| CORRESP | — | 0001144204-12-022875 | Apr 20, 2012 | — |