OY LOHJA AB

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E03D WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR321
 
  
 
B01D SEPARATION 1133

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5692250 Vacuum toilet system with treated rinse liquidAug 09, 94Dec 02, 97[E03D]
5454936 Vacuum toilet systemJul 20, 93Oct 03, 95[B01D]
5421040 Vacuum toilet systemJul 23, 93Jun 06, 95[E03D]
5165457 Vacuum sewer arrangementJun 13, 91Nov 24, 92[E03D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5245711 Vacuum toilet systemExpiredAug 15, 89Sep 21, 93[E03D]
4982537 Device for joining two building unitsExpiredNov 06, 89Jan 08, 91[E04B]
4964731 Shotcrete gunExpiredMay 03, 88Oct 23, 90[B01F]
4928326 Vacuum sewer arrangementExpiredApr 04, 88May 29, 90[E03D]
4907862 Method for generating elecronically controllable color elements and color display based on the methodExpiredApr 18, 89Mar 13, 90[H04N, G02F]
4865503 Device for joining together building unitsExpiredOct 22, 87Sep 12, 89[F16B, F16C]
4865504 Device for joining together building unitsExpiredOct 22, 87Sep 12, 89[F16B, F16C, F16D]
4865887 Procedure for the production of concrete elementsExpiredMay 09, 88Sep 12, 89[B05C, B05D, B05B]
4829097 Process for the preparation of an isocyanurate modified polyurethane foam and the resulting foamExpiredJan 22, 87May 09, 89[C08K]
4812098 Device for joining together building unitsExpiredOct 22, 87Mar 14, 89[F16B, F16C]
4711688 Method for encapsulating semiconductor components mounted on a carrier tapeExpiredMar 06, 85Dec 08, 87[B29C]
4686418 Plate-shaped display structureExpiredMay 30, 85Aug 11, 87[H05B]
4380867 Method for making electrically conductive penetrations into thin filmsExpiredJul 09, 81Apr 26, 83[H01L]
4362416 Extension joint for concrete polesExpiredJan 21, 81Dec 07, 82[E02D]
4362417 Extension joint for concrete pilesExpiredApr 22, 80Dec 07, 82[E04B]
4296578 Skylight apparatusExpiredJun 12, 79Oct 27, 81[E04B]

Top Inventors for This Owner

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