Guifeng
Guifeng Li, Clark, NJ US
Patent application number | Description | Published |
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20140024569 | Lubricating Oil Compositions Containing Sterically Hindered Amines as Ashless TBN Sourcces - Hindered amines useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials, and lubricating oil compositions containing such compounds. | 01-23-2014 |
20140162923 | LUBRICATING OIL COMPOSITIONS CONTAINING STERICALLY HINDERED AMINES AS ASHLESS TBN SOURCES - Hindered amines useful as ashless TBN sources for lubricating oil compositions that are compatible with fluoroelastomeric engine seal materials, and lubricating oil compositions containing such compounds. | 06-12-2014 |
Guifeng Wang, Shanghai CN
Patent application number | Description | Published |
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20100056569 | Heterocyclic Non-Nucleoside Compounds, Their Preparation, Pharmaceutical Composition And Their Use As Antiviral Agents - The invention relates a kind of antiviral agents, more concretely, relates to a kind of heterocyclic non-nucleoside compounds with the following structures, their preparation and pharmaceutical compositions including the compounds. The said compounds can be used as antiviral agents and as medicaments for treating diseases such as hepatitis B, influenza, herpes, HIV and so on. | 03-04-2010 |
Guifeng Wei, Dongguan City CN
Patent application number | Description | Published |
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20150128805 | PORTABLE OXYGEN GENERATOR - A portable oxygen generator comprises an air pump, a molecular tube and a molecular seat, the molecular tube is detachably fixed on the side wall of the molecular seat, the air pump is disposed at the lower part of the molecular seat. An air filter bucket, an oxygen storage bucket and an exhaust silencing bucket are disposed inside the molecular seat, the air filter bucket is provided with an air inlet communicated with the outside air. An air channel, an oxygen channel and an exhaust channel are disposed inside the molecular seat, the air channel is respectively communicated with the air filter bucket, the air pump and the molecular tube, the oxygen channel is respectively communicated with the molecular tube and the oxygen storage bucket, the exhaust channel is respectively communicated with the molecular tube and the exhaust silencing bucket, the air channel, the oxygen channel and the exhaust channel are respectively connected with a solenoid valve. | 05-14-2015 |