How many patents does
Petroleum Technology Company have?
patents
334
families
33
granted
76
applications
258
US
45
WO
44
EP
39
CN
2
RoW
204
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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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Petroleum Technology Company
Top ten assignees appearing on patents
Petroleum Technology Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| valve system | 30 | 2010 |
| plug sensor | 28 | 2011 |
| kick-over tool | 16 | 2009 |
| a tool for installing units in a well | 16 | 2010 |
| valve arrangement and method of operating the same | 15 | 2013 |
| shear valve | 15 | 2011 |
| shear open valve | 14 | 2007 |
| fluid injection device | 14 | 2006 |
| device for injection and stimulation of fluids in a well bore | 13 | 2008 |
| wellhead port plug assembly | 12 | 2014 |