BOW VALLEY RESOURCE SERVICES, INC., A CORP. OF DE

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4891139 Method for wet oxidation treatmentExpiredJan 17, 89Jan 02, 90[C02A]
4869833 Method and apparatus for controlled chemical reactionsExpiredNov 27, 87Sep 26, 89[C02F]
4822394 Method and apparatus for the production and liquefaction of gasesExpiredSep 14, 87Apr 18, 89[F25J]
4803054 Asymmetric heat-exchange reaction apparatus for effecting chemical reactionsExpiredMar 13, 87Feb 07, 89[B01J]
4774006 Fluid treatment methodExpiredJun 22, 87Sep 27, 88[C02F]
4765900 Process for the treatment of wasteExpiredFeb 13, 87Aug 23, 88[C02F]
4744908 Process for effecting chemical reactionsExpiredFeb 24, 87May 17, 88[C02F]
4744909 Method of effecting accelerated oxidation reactionExpiredFeb 02, 87May 17, 88[C02F]
4741386 Fluid treatment apparatusExpiredAug 25, 86May 03, 88[F28D, F28F, C02F]
4721575 Method and apparatus for controlled chemical reactionsExpiredApr 03, 86Jan 26, 88[C02F]
4713177 Process for mitigating scale formation in tube reaction apparatusExpiredDec 19, 86Dec 15, 87[C02F]
4692252 Method of removing scale from wet oxidation treatment apparatusExpiredMar 24, 86Sep 08, 87[C02F]
4671351 Fluid treatment apparatus and heat exchangerExpiredJul 17, 85Jun 09, 87[F28D, F28F, C02F]

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