LARSEN & TOUBRO LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H01H ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES 292

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9508495 Double break contact system for moulded case circuit breakersSep 11, 12Nov 29, 16[H01H]
9087654 Arc chute arrangement for arc quenching in electrical switching deviceDec 04, 12Jul 21, 15[H01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2013/0313,091 Operating Mechanism for Circuit BreakerAbandonedJul 28, 11Nov 28, 13[H01H]
2013/0112,657 ARC CHAMBER ASSEMBLY FOR USE IN MOULDED CASE CIRCUIT BREAKERSAbandonedJul 06, 11May 09, 13[H01H]
8076600 Contact actuating mechanism for switching deviceExpiredDec 29, 08Dec 13, 11[H01H]
8006748 Sealing arrangement for internal tubesheet for tubular heat exchangersExpiredApr 20, 07Aug 30, 11[F28F]
8006749 Seal for tubular heat exchangerExpiredApr 20, 07Aug 30, 11[F28F]
2011/0145,028 ESTABLISHMENT AND SUSTENANCE OF KNOWLEDGE CONTINUITY PROCESSAbandonedDec 10, 10Jun 16, 11[G06Q]
7882978 Threaded channel closure for tubular heat exchangerExpiredMay 03, 07Feb 08, 11[F28F, B65D]
7833161 Bone densitometer and a method thereofExpiredAug 11, 06Nov 16, 10[A61B]
2009/0165,349 Integrated Contact Indication and Label HolderAbandonedDec 29, 08Jul 02, 09[G09F, G02B]
2007/0213,625 Cardiac output monitoring system and method using electrical impedance plythesmographyAbandonedAug 24, 06Sep 13, 07[A61B]
6696654 Design system of secondary isolating contacts in circuit breakersExpiredMar 04, 02Feb 24, 04[H02B, H01H]

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