How many patents does
Cnooc Energy Technology & Services have?
patents
1,266
families
941
granted
329
applications
937
CN
1,263
WO
2
US
1
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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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Cnooc Energy Technology & Services
Top ten assignees appearing on patents
2009 - 2018
Cnooc Energy Technology & Services
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method for simulated moving bed to adsorb and separate polycyclic aromatic hydrocarbons | 5 | 2015 |
| top packer used for preventing sand | 2 | 2012 |
| preparation method of non-phosphorus environment-friendly dirt dispersion agent special … 🛈 | 2 | 2015 |
| process improvement method of vulcanized hydrogenation refining catalyst | 2 | 2015 |
| preparation method of vulcanization type hydrofining catalyst | 2 | 2015 |
| method for preparing selective hydrogenation ring-opening catalyst for aromatic hydrocar… 🛈 | 2 | 2015 |
| oil field corrosion inhibition bactericide and preparation method thereof | 2 | 2015 |
| automatic crude oil component separating device and application of automatic crude oil c… 🛈 | 2 | 2015 |
| method for treating and regulating pore structure of catalytic desulfurization adsorbent… 🛈 | 2 | 2015 |
| hydrogenation method for producing high-aromatic latent naphtha employing bad aromatics-… 🛈 | 2 | 2015 |