DEUTSCHE BABCOCK ANLAGEN GMBH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6135629 Device for stirring up gas flowing through a duct having a structural insert positioned at an acute angle to a main gas streamExpiredJan 14, 99Oct 24, 00[B01F]
6101958 Method of and apparatus for thermal degradation of wasteExpiredFeb 19, 98Aug 15, 00[F23G, F23N]
5983811 Method and roller grill for burning refuseExpiredNov 07, 97Nov 16, 99[F23H, F23K]
5967064 Roller grateExpiredNov 07, 97Oct 19, 99[F23H, F23N]
5876689 Process for the manufacture of milk of limeExpiredNov 19, 97Mar 02, 99[C01F]
5286200 Rotary kilnExpiredNov 18, 92Feb 15, 94[F27B]
5259863 Method and apparatus for the incineration of garbage and refuseExpiredMay 22, 92Nov 09, 93[C22B]
5213774 Mobile disinfection apparatus especially for infectious wasteExpiredSep 10, 91May 25, 93[B01B, B01J, A61L]
5094673 Apparatus for dedusting a gas streamExpiredDec 21, 90Mar 10, 92[B01D]
5081939 Roller-type grate and bar thereforExpiredJan 08, 91Jan 21, 92[F23K]
4911900 Method of removing nitrogen oxides from a flue gas streamExpiredSep 26, 88Mar 27, 90[C01B]

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