How many patents does
Doowon Technical College have?
patents
576
families
320
granted
99
applications
477
KR
355
WO
120
US
38
CN
36
EP
8
RoW
19
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
Doowon Technical College
Top ten assignees appearing on patents
2009 - 2018
| doowon electronics company | 445 |
| obrist engineering | 11 |
| sun snong company | 2 |
| jcast networks korea | 2 |
| doowon electric company | 2 |
| jcastnetworks company | 1 |
2009
| doowon electronics company | 48 |
| obrist engineering | 5 |
2018
| doowon electronics company | 2 |
Doowon Technical College
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| variable displacement swash plate type compressor | 9 | 2007 |
| scroll compressor with improved back pressure control function | 9 | 2008 |
| compressor | 7 | 2008 |
| exhaust check valve of swash plate compressor | 7 | 2008 |
| oil separating structure of variable displacement compressor | 7 | 2006 |
| inverter type scroll compressor | 7 | 2008 |
| displacement control valve for a variable displacement compressor | 7 | 2008 |
| variable displacement swash plate type compressor | 6 | 2012 |
| displacement control valve for variable displacement compressor | 6 | 2009 |
| reciprocating compressor with rotary valve | 6 | 2008 |