How many patents does
Swelltec have?
patents
273
families
27
granted
73
applications
200
US
59
EP
58
GB
56
WO
2
RoW
98
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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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Swelltec
Top ten assignees appearing on patents
2009 - 2018
| swelltec | 263 |
| weatherford u.k. | 8 |
| weatherford/lamb | 2 |
| weatherford technology holdings | 1 |
2009
| swelltec | 43 |
2018
| swelltec | 5 |
| weatherford u.k. | 5 |
Swelltec
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| swellable downhole centraliser | 54 | 2006 |
| downhole apparatus and method | 22 | 2008 |
| downhole apparatus and method | 21 | 2007 |
| downhole apparatus and method | 19 | 2007 |
| downhole isolation methods and apparatus therefor | 19 | 2011 |
| method of forming a downhole apparatus | 14 | 2008 |
| wellbore apparatus and method | 14 | 2008 |
| improvements to swellable apparatus | 14 | 2009 |
| swellable packer having a cable conduit | 13 | 2008 |
| method and apparatus for testing swellable materials | 13 | 2008 |