CENTRAL RESEARCH LABORATORIES LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G09G ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION 6145
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 2283
 
  
 
G01J MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY 177
 
  
 
G02F DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS 1132
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 1137

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2003/0058,257 Applying identifying codes to stationary imagesAug 09, 02Mar 27, 03[G09G]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6977934 Data transportOct 15, 99Dec 20, 05[H04L, G06F]
6832315 Method of labelling an articleJun 15, 00Dec 14, 04[H04L]
6630919 Optical modulator and integrated circuit thereforSep 08, 98Oct 07, 03[G09G]
6338037 Audio signal identification using code labels inserted in the audio signalJan 11, 99Jan 08, 02[G11B]
6175350 Drive circuit for ferroelectric liquid crystal shutterAug 25, 97Jan 16, 01[G09G]
5459598 Optical modulation device with liquid crystal voids formed by the spacer arrangementsJul 13, 94Oct 17, 95[G02F]
5189406 Display deviceAug 28, 91Feb 23, 93[G09G]
5162658 Thermal detection arrangement having a plurality of optical filter devicesApr 22, 91Nov 10, 92[G01J]
5132678 Display device with time-multiplexed addressing of groups of rows of pixelsNov 12, 91Jul 21, 92[G09G]
5093652 Display deviceFeb 26, 91Mar 03, 92[G09G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2005/0028,189 System to provide access to information related to a broadcast signalAbandonedFeb 12, 04Feb 03, 05[H04N, H04H]
2004/0201,174 Method of forming a fluid tight sealAbandonedApr 02, 04Oct 14, 04[E04B]
2004/0179,736 Automatic classification and/or counting systemAbandonedNov 17, 03Sep 16, 04[G06K]
2004/0143,443 System to detect unauthorized signal processing of audio signalsAbandonedOct 20, 03Jul 22, 04[G10L]
6754633 Encoding a code signal into an audio or video signalExpiredJun 14, 01Jun 22, 04[G10L]
2004/0098,298 Monitoring responses to visual stimuliAbandonedJul 10, 03May 20, 04[G06F]
2004/0023,705 Interactive design and amusement systemAbandonedNov 05, 02Feb 05, 04[G06F]
6680767 Method of forming a liquid crystal polymer layer without support substrateExpiredApr 03, 02Jan 20, 04[C09K, G02F]
2003/0177,815 Pellet resistor sensorAbandonedFeb 07, 03Sep 25, 03[G01N]
2003/0173,781 Adaptor for receiving a fluidic deviceAbandonedMay 12, 03Sep 18, 03[F16L]
2003/0169,804 Method of labelling a multi-frequency signalAbandonedDec 11, 02Sep 11, 03[H04B]
2003/0162,502 Radio frequency (rf) TransceiverAbandonedFeb 13, 03Aug 28, 03[H04B]
2003/0154,772 Method and apparatus for viscosity measurementAbandonedFeb 14, 03Aug 21, 03[G01N]
2003/0128,845 Method of scrambling a signalAbandonedNov 12, 02Jul 10, 03[H04N]
6564655 Analytical sampling deviceExpiredJul 05, 02May 20, 03[G01N]
6522472 Apparatus for displaying a real image in spaceExpiredSep 14, 01Feb 18, 03[G02B]
2003/0021,913 Liquid crystal alignment layerAbandonedJul 03, 01Jan 30, 03[C09K]
2002/0159,539 Method of estimating the carrier frequency of a phase-modulated signalAbandonedFeb 12, 02Oct 31, 02[H04L]
6467913 Apparatus for displaying a suspended imageExpiredJan 23, 01Oct 22, 02[G02B]
2002/0119,580 Radiofrequency encoded chemical library synthesis particles methodAbandonedOct 05, 01Aug 29, 02[G01N, H04B]

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