How many patents does
Tdw Delaware have?
patents
381
families
44
granted
87
applications
294
US
69
EP
41
WO
30
CN
25
KR
13
GB
9
JP
1
RoW
193
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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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Tdw Delaware
Top ten assignees appearing on patents
2009 - 2018
| tdw delaware | 320 |
| tididabl-ju delavehr | 3 |
| tdw delaware inc. (us) | 1 |
2009
| tdw delaware | 30 |
| tididabl-ju delavehr | 2 |
2018
| tdw delaware | 24 |
Tdw Delaware
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| pipeline inspection tool with double spiral emat sensor array | 43 | 2009 |
| verifiable closing and locking system of a cylindrical passageway | 32 | 2008 |
| improved double block and bleed plug | 30 | 2007 |
| machine-actuated and removable safety closure with anti-rotation and machine-released ho… 🛈 | 25 | 2012 |
| an improved pipeline pig signal with adjustable mounting | 15 | 2007 |
| device for sealing pipelines | 15 | 2015 |
| magnetometer-based detector for objects in a pipeline | 14 | 2009 |
| speed control drive section with failsafe valve | 14 | 2009 |
| vortex inhibitor dispersal pig | 13 | 2008 |
| telescoping double block and bleed plug | 12 | 2009 |