How many patents does
Derrick Corporation have?
patents
297
families
27
granted
67
applications
230
US
68
CN
27
EP
25
WO
22
KR
3
RoW
152
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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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Derrick Corporation
Top ten assignees appearing on patents
2009 - 2018
| derrick corporation | 246 |
| derrick manufacturing corporation | 3 |
| derrik korporejshn | 2 |
2009
| derrick corporation | 7 |
| derrik korporejshn | 1 |
2018
| derrick corporation | 41 |
Derrick Corporation
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method and apparatuses for screening | 51 | 2007 |
| polyurethane vibratory screen | 38 | 2010 |
| injection molded screening apparatuses and methods | 34 | 2012 |
| method and apparatuses for screening | 28 | 2007 |
| polyurethane vibratory screen | 18 | 2010 |
| method and apparatuses for pre-screening | 16 | 2007 |
| systems, apparatuses, and methods for securing screen assemblies | 16 | 2014 |
| injection molded screening apparatuses and methods | 12 | 2012 |
| apparatus, system and methods to divide flow | 10 | 2013 |
| centrifuge with automatic sampling and control and method thereof | 9 | 2013 |