How many patents does
Hydril Usa Manufacturing have?
patents
756
families
100
granted
198
applications
558
US
169
EP
112
CN
89
WO
41
KR
10
JP
5
GB
5
RoW
325
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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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Hydril Usa Manufacturing
Top ten assignees appearing on patents
Hydril Usa Manufacturing
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| revised cure cycle for annular packing units | 23 | 2006 |
| subsea control module with removable section | 21 | 2010 |
| visual ram position indicator apparatuses and methods | 19 | 2011 |
| ram bop position sensor | 16 | 2007 |
| bidirectional ram bop and method | 16 | 2008 |
| pressure relief valve and method for subsea components | 15 | 2007 |
| apparatuses and methods for determining wellbore influx condition using qualitative indi… 🛈 | 15 | 2011 |
| shear blade geometry and method | 15 | 2011 |
| subsea force generating device and method | 15 | 2008 |
| pressure energized radial seal | 15 | 2006 |