| Datum | Zeit | Quelle | Überschrift | Symbol | Firma |
| 14/07/2009 | 17h03 | Edgar (US Regulatory) | Statement of Ownership (SC 13G) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 18/05/2009 | 12h02 | Edgar (US Regulatory) | Termination of Registration of a Class of Security under Section 12(g) (15-12G) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 11/05/2009 | 20h50 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 07/05/2009 | 22h39 | Edgar (US Regulatory) | Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 30/04/2009 | 22h06 | Edgar (US Regulatory) | Information Statement - All Other (definitive) (DEF 14C) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 08/04/2009 | 22h30 | Edgar (US Regulatory) | Statement of Beneficial Ownership (SC 13D) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 31/03/2009 | 18h56 | Edgar (US Regulatory) | Annual Report (10-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 25/03/2009 | 01h52 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 24/03/2009 | 16h41 | Edgar (US Regulatory) | Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 25/02/2009 | 23h07 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 25/02/2009 | 22h47 | Edgar (US Regulatory) | Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 17/02/2009 | 16h48 | Edgar (US Regulatory) | Amended Statement of Beneficial Ownership (SC 13D/A) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 21/01/2009 | 12h01 | Edgar (US Regulatory) | Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 16/01/2009 | 17h22 | Edgar (US Regulatory) | Initial Statement of Beneficial Ownership (3) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 12/01/2009 | 20h49 | Edgar (US Regulatory) | Amended Statement of Changes in Beneficial Ownership (4/A) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 18/12/2008 | 19h27 | Edgar (US Regulatory) | Statement of Changes in Beneficial Ownership (4) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 01/12/2008 | 18h35 | Edgar (US Regulatory) | Amended Current report filing (8-K/A) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 26/11/2008 | 21h17 | Edgar (US Regulatory) | Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 14/11/2008 | 21h23 | Edgar (US Regulatory) | Quarterly Report (10-Q) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 11/09/2008 | 17h58 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 04/09/2008 | 19h15 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 25/08/2008 | 17h13 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 18/08/2008 | 22h29 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Prospectus filed pursuant to Rule 424(b)(3) (424B3) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 18/08/2008 | 22h27 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Prospectus filed pursuant to Rule 424(b)(3) (424B3) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 14/08/2008 | 20h20 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Quarterly Report (10-Q) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 06/08/2008 | 12h00 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Notice of Effectiveness (EFFECT) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 28/07/2008 | 12h01 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Securities Registration Statement (S-1/A) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 23/07/2008 | 20h18 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Current report filing (8-K) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 23/07/2008 | 12h02 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Amended Annual Report (Small Business Issuers) (10KSB/A) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |
| 23/07/2008 | 12h02 | Edgar (US Regulatory) | Hydrogen Engine Center, Inc. - Amended Quarterly Report (10-Q/A) | USOTC:HYEG | Hydrogen Engine Center Inc (CE) |