# ClearSign Technologies Corp — Form D

ClearSign Technologies Corp of TULSA, OK, a company, filed a Form D exempt-offering notice with the SEC on 2020-10-02. The offering totals $1.3M, of which $1.3M was reported sold. Industry: Other.

## Offering

- Filed: 2020-10-02
- Form: D
- Accession: 0001104659-20-111768
- Industry: Other
- Exemptions: 06c
- Total offering: $1.3M
- Amount sold: $1.3M
- Investors: 1
- Date of first sale: 2020-09-30
- Security types: equity
- Revenue range: $1 - $1,000,000
- SEC file number: 021-377049

## Issuer

- Name: ClearSign Technologies Corp
- CIK: 0001434524
- Entity type: Corporation
- Jurisdiction: DELAWARE
- Incorporated: 2008
- Address: 8023 E. 63RD PLACE SUITE 101, TULSA, OK, 74133
- Phone: (918) 236-6461

## Officers, directors & promoters (27)

_Showing 25 of 27 people._

| Name | Role | Location |
| --- | --- | --- |
| Susanne James Meline | Director | Seattle, WA |
| Bruce Alan Pate | Director | Seattle, WA |
| Louis J Basenese | Related Person | Tulsa, OK |
| Anthony DiGiandomenico | Related Person | Tulsa, OK |
| Catharine S de Lacy | Director | Tulsa, OK |
| David M Maley | Director | Tulsa, OK |
| Brent James Hinds | Executive Officer | Tulsa, OK |
| Colin James Deller | Director | Tulsa, OK |
| Colin James Deller | Executive Officer | Tulsa, OK |
| Colin James Deller | Related Person | Tulsa, OK |
| Judith S Schrecker | Director | Tulsa, OK |
| Robert T Hoffman Sr. | Director | Tulsa, OK |
| Stephen E Pirnat | Director | Seattle, WA |
| Stephen E Pirnat | Executive Officer | Seattle, WA |
| Jeffrey E Ott | Director | Seattle, WA |
| Susanne E Meline | Director | Seattle, WA |
| Scott E Isaacson | Director | Seattle, WA |
| Brian E Fike | Executive Officer | Seattle, WA |
| Lon E Bell | Director | Oxnard, CA |
| Richard Rutkowski | Director | Seattle, WA |
| Richard Rutkowski | Executive Officer | Seattle, WA |
| David Goodson | Director | Seattle, WA |
| David Goodson | Executive Officer | Seattle, WA |
| Geoffrey Osler | Director | Seattle, WA |
| Geoffrey Osler | Executive Officer | Seattle, WA |

## Other filings by this issuer (6)

| Filed | Form | Offering | Sold |
| --- | --- | --- | --- |
| [2026-07-31](https://search.stillhousedata.com/formd/0001104659-26-089253) | D | $1.8M | $1.8M |
| [2024-07-09](https://search.stillhousedata.com/formd/0001104659-24-078357) | D | $11.7M | $4.3M |
| [2024-05-08](https://search.stillhousedata.com/formd/0001104659-24-058677) | D | $14.4M | $5.0M |
| [2018-07-23](https://search.stillhousedata.com/formd/0001144204-18-039357) | D | $11.7M | $11.7M |
| [2011-03-18](https://search.stillhousedata.com/formd/0001144204-11-015685) | D | $3.0M | $100K |
| [2011-02-03](https://search.stillhousedata.com/formd/0001144204-11-005705) | D/A | $1.1M | $1.1M |

## More

- [CIK 1434524 on SEC EDGAR (source of record)](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=1434524&type=&dateb=&owner=include&count=40)
- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/formd/0001104659-20-111768.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.