WRC PLC patents filed

Company number: 02262098


Title Date Filed Status Publication number
Conductivity tool for non-metallic pipeline inspection 2013-01-11 Awaiting First Examination GB2509734
Non-contact absorbance measurement 2011-05-06 Terminated GB2490537
Flotation treatment of liquids 2010-07-16 Terminated GB2476847
Electric motor power sensor 2008-09-18 Ceased GB2466472
Acoustic rain sensor 2005-04-01 Terminated GB2412735
Measuring liquid height, velocity, or water quality using reflection of light from a surface of the liquid 2003-09-10 Ceased GB2393783
Method and device for determining fluid flow velocity 2002-03-13 Terminated GB2376740
Marking fluids 1999-10-20 Ceased GB2342994
Deployment of equipment into fluid containers and conduits 1999-09-07 Granted GB2355507
Determining fluid flow rate in a pipe 1999-09-07 Ceased GB2354075
A method for detecting and/or locating leaks in a pipe 1999-09-07 Ceased GB2379015
Apparatus for monitoring bubbles in a liquid 1999-04-29 Ceased GB2336905
Pipe cleaning method and device 1996-04-25 Ceased GB2300242
Removing phosphorus from waste water 1995-12-22 Terminated GB2308590
Lining a pipeline and liner therefor 1995-06-12 Ceased GB2302153
Pipeline renovation 1995-06-09 Ceased GB2302152
Water disinfection 1995-03-20 Terminated GB2299077
Aqueous sludge treatment 1995-03-17 Ceased GB2287471
Treatment of water for use in a cooling tower by passage through a membrane to remove multivalent ions 1994-07-21 Terminated GB2291365
Activated sludge process 1994-07-18 Ceased GB2291417
Treatment of water,sewage and like waste liquids 1993-10-13 Ceased GB2274281
Treatment of sludge 1993-08-03 Ceased GB2283485
Measurement of flocculation layer depth and density 1992-05-21 Terminated GB2256049
Pipe tapping 1988-09-16 Terminated GB2223550
Thermophilic aerobic digestion 1988-07-19 Terminated GB2207668
Respirometer 1988-04-07 Terminated GB2203543
Activated sludge process 1988-03-15 Ceased GB2216113
Pollutant detector 1987-02-11 Ceased GB2189605
Automatic filtration apparatus 1985-10-02 Ceased GB2164866
Water pollutant monitor 1985-04-24 Ceased GB2158235
Electrodes for continuous monitoring of water quality 1985-04-04 Ceased GB2195543
Continuous monitoring of water quality 1985-04-04 Ceased GB2157445
Liquid treatment apparatus 1985-04-03 Ceased GB2202465
Liquid treatment apparatus 1985-04-03 Ceased GB2173128
Pipe mole 1984-08-24 Ceased GB2164411
Liquid treatment apparatus 1984-07-10 Ceased GB2143154
Water treatment process 1984-07-05 Ceased GB2143655
Activated sludge process 1984-01-30 Ceased GB2153243
Pipe replacement 1982-01-22 Granted GB2113795
Transfer of oxygen into waste water 1981-01-28 Ceased GB2072027





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