AQUA-CHEM, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
B01D SEPARATION 2114
 
 
 
A23G COCOA; COCOA PRODUCTS, e.g. CHOCOLATE; SUBSTITUTES FOR COCOA OR COCOA PRODUCTS; CONFECTIONERY; CHEWING GUM; ICE-CREAM; PREPARATION THEREOF 127
 
 
 
F25C PRODUCTION, WORKING, STORING OR DISTRIBUTION OF ICE 121
 
 
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5,768,894 Apparatus, process and system for tube and whip rod heat exchangerDec 19, 95Jun 23, 98[A23G]
5,385,645 Heat transfer apparatus with positive drive orbital whip rodJun 22, 93Jan 31, 95[F28F, B01D]
5,363,660 Orbital type freezing apparatus and methodJun 22, 93Nov 15, 94[F25C]
5,221,439 Orbital tube evaporator with improved heat transferJun 17, 91Jun 22, 93[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5,348,651 Membrane simulatorExpiredMar 23, 93Sep 20, 94[B01D]
5,195,883 Flue gas recirculation system with fresh air purge for burnersExpiredApr 01, 92Mar 23, 93[F23J]
5,044,326 Flammable waste liquid combustion system and methodExpiredMar 14, 90Sep 03, 91[F23G, F23C, F22B]
5,040,716 Pipe welding apparatusExpiredApr 03, 90Aug 20, 91[B23K]
5,013,446 Chromatographic gel contactor and processExpiredApr 25, 90May 07, 91[B01D]
4,961,086 Device for reading positional information on photographic filmsExpiredApr 14, 89Oct 02, 90[G03B]
4,814,079 Spirally wrapped reverse osmosis membrane cellExpiredApr 04, 88Mar 21, 89[B01D]
4,800,824 Pyrolytic incineration systemExpiredOct 13, 87Jan 31, 89[F23D]
4,762,592 Orbital drive evaporatorExpiredOct 20, 86Aug 09, 88[C02F]
4,730,435 Sterile docking system for filling IV bagsExpiredApr 07, 86Mar 15, 88[B05B]
4,716,843 Waste fuel combustion systemExpiredNov 03, 86Jan 05, 88[F23B]
4,713,195 Scale inhibitorExpiredJan 30, 86Dec 15, 87[C02F]
4,659,305 Flue gas recirculation system for fire tube boilers and burner thereforExpiredDec 30, 85Apr 21, 87[F23M]
4,651,654 IncineratorExpiredOct 24, 84Mar 24, 87[F23G]
4,618,399 Wobble tube evaporator with whip rod fluid distributorExpiredApr 09, 84Oct 21, 86[B01D]
4,566,301 Method and means of manufacturing spirally fluted tubesExpiredDec 13, 84Jan 28, 86[B21D]
4,565,137 Bio-mass suspension burnerExpiredJan 07, 85Jan 21, 86[F23D]
4,559,305 Microbial culture systemExpiredJun 03, 81Dec 17, 85[C12N]
4,519,773 Dual cannister gas housingExpiredFeb 25, 83May 28, 85[F23N, F23C]
4,485,746 Energy recovery system for an incineratorExpiredNov 18, 83Dec 04, 84[F23B]

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