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Patent applications and USPTO patent grants for Rieger, Heinz H..The latest application filed is for "unvented heating appliance having system for reducing undesirable combustion products".
Patent | Date |
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Unvented heating appliance having system for reducing undesirable combustion products App 20010032641 - Campbell, Larry E. ;   et al. | 2001-10-25 |
Unvented heating appliance having system for reducing undesirable combustion products Grant 6,216,687 - Campbell , et al. April 17, 2 | 2001-04-17 |
Fireplace having multi-zone heating control Grant 5,983,890 - Thomas , et al. November 16, 1 | 1999-11-16 |
Direct top venting high efficiency fireplace Grant 4,909,227 - Rieger March 20, 1 | 1990-03-20 |
Fireplace gas burner assembly Grant 4,838,240 - Rieger June 13, 1 | 1989-06-13 |
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