How many patents does
Ningbo Wanhua Polyurethanes Company have?
patents
278
families
103
granted
112
applications
166
CN
177
EP
38
US
22
WO
18
KR
7
JP
6
RoW
10
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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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Ningbo Wanhua Polyurethanes Company
Top ten assignees appearing on patents
2009 - 2018
Ningbo Wanhua Polyurethanes Company
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| 3-aminomethyl-3, 5, 5-trimethyl cyclohexylamine preparation method | 12 | 2011 |
| method for preparing 3-aminomethyl-3,5,5-trimethyl cyclohexylamine | 12 | 2012 |
| catalyst for preparing chlorine by oxidation of hydrogen chloride and preparation thereof | 10 | 2010 |
| polycarbonate preparation method | 10 | 2011 |
| a hole jet reactor and a process for the preparation of an isocyanate using the reactor | 8 | 2006 |
| process of producing chlorine gas by catalytic oxidation of hydrogen chloride | 8 | 2012 |
| composite catalyst, preparation process thereof, and process for catalyzing the trimeriz… 🛈 | 8 | 2012 |
| jet reactor with flow ducts and process for preparing isocyanates using it | 7 | 2007 |
| method for treating waste saline water produced in production process of diphenylmethane… 🛈 | 7 | 2009 |
| method for intermittent preparation of low content trans-trans isomer-containing 4,4'-di… 🛈 | 7 | 2011 |