How many patents does
China Petroleum Engineering Company have?
patents
299
families
233
granted
67
applications
232
CN
298
WO
1
Buy the report
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
contact us for pricing
- VAT will apply to UK companies
- EU companies must supply their VAT number
Check out our sample pages |
Find companies to compare
Many companies now available
companies
12,000+
patents
42 million
patent families
23 million
Search to find companies of interest
read summary of their published patent
the following tables are just extracts from the report
the company report contains more information
China Petroleum Engineering Company
Top ten assignees appearing on patents
2009 - 2018
2018
China Petroleum Engineering Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| deoxidization-temperature control-water injection pinch and deoxidization-temperature co… 🛈 | 2 | 2012 |
| multi-branch pipe gas-liquid separator | 2 | 2010 |
| low temperature claus steam energy recovery and control method | 2 | 2011 |
| method for protecting anti-corrosion layer of pipeline during horizontal directional dri… 🛈 | 2 | 2011 |
| zero-sewage discharge novel process for development of natural gas fields | 2 | 2013 |
| skid resistance supporting straining protection method for passing through topsoil of la… 🛈 | 2 | 2013 |
| method for determining pipeline critical burial depth in debris flow areas | 2 | 2013 |
| system and method for utilizing gas-driven compressor waste heat | 2 | 2013 |
| process unit and method for removing heavy hydrocarbon during liquefaction process of na… 🛈 | 2 | 2013 |
| joint coating method applicable to thickened erosion-resistant layers of directionally d… 🛈 | 2 | 2013 |