How many patents does
Petrowell have?
patents
640
families
62
granted
166
applications
474
US
115
EP
84
GB
75
WO
64
RoW
302
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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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the following tables are just extracts from the report
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Petrowell
Top ten assignees appearing on patents
2009
| petrowell | 59 |
Petrowell
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| downhole apparatus and method | 42 | 2012 |
| apparatus and method for setting a downhole anchor and related telescopic joint | 31 | 2009 |
| downhole detection | 27 | 2013 |
| downhole actuating apparatus | 26 | 2010 |
| method of and apparatus for completing a well | 26 | 2007 |
| improved centraliser | 26 | 2007 |
| tree plug | 25 | 2006 |
| improved plug | 17 | 2004 |
| mechanical counter | 16 | 2010 |
| flow control assembly | 16 | 2012 |