How many patents does
Larsen & Toubro have?
patents
238
families
176
granted
21
applications
217
WO
24
EP
23
US
19
CN
8
KR
3
RoW
161
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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Larsen & Toubro
Top ten assignees appearing on patents
2009 - 2018
| larsen & toubro | 226 |
| l&t technology services | 7 |
| tamco switchgear | 5 |
| larsen and toubro | 3 |
| larsen & tourbo | 1 |
| 1/4larsen & toubro | 1 |
2009
| larsen & toubro | 14 |
Larsen & Toubro
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| threaded channel closure for a tube and shell heat exchanger | 11 | 2006 |
| arc chute arrangement for arc quenching in electrical switching device | 8 | 2012 |
| seal for tubular heat exchanger | 8 | 2006 |
| a method and system for extended depth of field calculation for microscopic images | 6 | 2012 |
| an improved operating mechanism for circuit breaker | 6 | 2011 |
| an improved double break contact system for moulded case circuit breakers | 5 | 2012 |
| sealing arrangement for internal tubesheet for tubular heat exchangers | 5 | 2006 |
| short-circuit fault indicator device | 4 | 2012 |
| an improved arc chamber assembly for use in moulded case circuit breakers | 4 | 2010 |
| contact actuating mechanism for switching device | 4 | 2007 |