NINGBO WANHUA POLYURETHANES CO., LTD.
Patent Applications and Registrations
Patent applications and USPTO patent grants for NINGBO WANHUA POLYURETHANES CO., LTD..The latest application filed is for "catalyst for preparing chlorine by oxidation of hydrogen chloride and preparation thereof".
- NINGBO WANHUA POLYURETHANES CO., LTD. - Ningbo CN
| Patent | Date |
|---|---|
| Catalyst For Preparing Chlorine By Oxidation Of Hydrogen Chloride And Preparation Thereof App 20130288884 - Yi; Guangquan ; et al. | 2013-10-31 |
| Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane with a Low Amount of the Trans-trans Isomer App 20120323041 - Hu; Shuang ; et al. | 2012-12-20 |
| Hole jet reactor and a process for the preparation of an isocyanate using the reactor Grant 8,333,927 - Ding , et al. December 18, 2 | 2012-12-18 |
| Jet reactor with flow ducts and process for preparing isocyanates using it Grant 8,206,652 - Shang , et al. June 26, 2 | 2012-06-26 |
| Hole-jetting type mixer-reactor Grant 8,042,988 - Ding , et al. October 25, 2 | 2011-10-25 |
| Method of preparing polymethylene-polyphenyl-polyamine Grant 7,893,301 - Ding , et al. February 22, 2 | 2011-02-22 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 