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PROTON ENERGY SYSTEMS INC
PROTON ENERGY SYSTEMS INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0001114617, and its reported...
Overview
PROTON ENERGY SYSTEMS INC is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0001114617, and its reported industry is Electrical Industrial Apparatus. The retained history contains 12 filings, including 8-K filed on 2003-12-11. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.
Company overview
- Legal name
- PROTON ENERGY SYSTEMS INC
- Classification
- Company
- Industry (SIC)
- 3620 — Electrical Industrial Apparatus
- Headquarters
- Wallingford, CT, United States
- Incorporated in
- DE
- Fiscal year end
- December 31
- SEC CIK
- 0001114617
Recent SEC filings
| Form | Filed | Period | Filing |
|---|---|---|---|
| 8-K | FORM 8-K | ||
| 8-K | FORM 8-K | ||
| 10-Q | QUARTERLY REPORT DATED SEPTEMBER 30, 2003 | ||
| SC 13G | — | SCHEDULE 13G | |
| 8-K | CURRENT REPORT | ||
| 10-Q | QUARTERLY REPORT DATED JUNE 30, 2003 | ||
| 8-K | FORM 8-K | ||
| 8-K | FORM 8-K | ||
| 10-Q | FORM 10-Q | ||
| 8-K | FORM 8-K | ||
| DEF 14A | NOTICE & PROXY STATEMENT | ||
| 10-K | FORM 10-K |
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