Haden Schweitzer Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F26B DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 129

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5230161 Apparatus and process for generating radiant energyMay 15, 91Jul 27, 93[F26B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7273339 Powder transport method and apparatusExpiredMar 07, 03Sep 25, 07[H01L]
5954970 Process for treating sludge using low-level heatExpiredJan 11, 95Sep 21, 99[C02F]
5594999 Radiant wall oven and process for generating infrared radiation having a nonuniform emission distributionExpiredMar 29, 93Jan 21, 97[F26B]
5573587 Process for producing building materials from paint sludgeExpiredJun 14, 94Nov 12, 96[C04B]
5383312 Contaminant shieldExpiredNov 08, 93Jan 24, 95[E04B]
5363567 Self incinerating oven and process carried out therebyExpiredMar 10, 92Nov 15, 94[F26B]
5297954 Volatile organic compound abatement systemExpiredMar 11, 93Mar 29, 94[F23D]
5062788 High efficiency linear gas burner assemblyExpiredJan 24, 91Nov 05, 91[F23D]
5020470 Wet scrubber apparatus and paint spraybooth in combination with wet scrubber apparatusExpiredAug 31, 89Jun 04, 91[B05B, B01D]
4980030 Method for treating waste paint sludgeExpiredJun 03, 88Dec 25, 90[F26B, B01D]
4801262 Low velocity air sealExpiredDec 11, 87Jan 31, 89[F27B, F24F]
4785552 Convection stabilized radiant ovenExpiredJul 08, 87Nov 22, 88[F26B]
4771707 Fume incineration system for paint drying ovenExpiredMar 08, 84Sep 20, 88[F23G, F23J]
4764108 Modular ovenExpiredApr 03, 87Aug 16, 88[F27B]
4750274 Sludge processingExpiredJan 27, 87Jun 14, 88[F26B]
4704952 Method and apparatus for applying paintExpiredNov 07, 85Nov 10, 87[B05B]
4620858 Process and system for elimination of paint solvent vaporsExpiredNov 19, 84Nov 04, 86[B01D]
4546553 Radiant wall oven and process of drying coated objectsExpiredAug 03, 83Oct 15, 85[F26B]
4532983 Water curtain apparatus for heat energy recovery from escaping steamExpiredJun 06, 83Aug 06, 85[B08B]
4502410 Enclosure for treatment tankExpiredNov 07, 83Mar 05, 85[B05B]

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