| Filed On | Filing |
|---|---|
| 10 Jan 2022 | GRACE & WHITE, INC 13G FTEK |
| 10 Feb 2021 | SC 13G |
| 01 Feb 2018 | GRACE & WHITE, INC FTEK 13G YE 2017 |
| 12 Feb 2010 | FUEL TECH, INC. |
| 19 Nov 2008 | SCHEDULE 13G |
| 01 May 2008 | SCHEDULE 13G |
| 05 Feb 2008 | INITIAL |
| 13 Nov 2006 | DOC ONE |
| 02 May 2006 | SC 13G |
| 31 Jan 2006 | SC 13G |
| 26 Sep 2005 | SC 13G |
| 18 Jan 2005 | HAI_FTEK |
| 13 Feb 2004 | AHH - FUEL TEK |
| 12 Feb 2003 | FUEL-TECH N.V. |
| 16 Jun 1997 | SCHEDULE 13G |
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