Chen; Qinghua
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chen; Qinghua.The latest application filed is for "sprayer for settling dust of coal mine".
- Chen; Qinghua - Shenzhen CN
- CHEN; Qinghua - Hefei Anhui
- Chen; Qinghua - Hunan CN
- Chen; Qinghua - Saratoga CA US
- Chen; Qinghua - Yunnan CN
Trademarks
| Patent | Date |
|---|---|
| Notebook computer stand Grant D956,768 - Chen July 5, 2 | 2022-07-05 |
| Sprayer For Settling Dust Of Coal Mine App 20220205360 - YUAN; Liang ; et al. | 2022-06-30 |
| Prepressed emergency air spring assembly Grant 11,287,007 - Nong , et al. March 29, 2 | 2022-03-29 |
| Emergency air spring assembly Grant 11,287,006 - Nong , et al. March 29, 2 | 2022-03-29 |
| Pre-compression type emergency air spring assembly Grant 11,073,189 - Nong , et al. July 27, 2 | 2021-07-27 |
| Pre-compression Type Emergency Air Spring Assembly App 20200393014 - NONG; Duomin ; et al. | 2020-12-17 |
| Prepressed Emergency Air Spring Assembly App 20200217388 - NONG; Duomin ; et al. | 2020-07-09 |
| Emergency Air Spring Assembly App 20200217387 - NONG; Duomin ; et al. | 2020-07-09 |
| Optical switch and optical switch array Grant 9,042,689 - Chen , et al. May 26, 2 | 2015-05-26 |
| Optical Switch And Optical Switch Array App 20130243372 - Chen; Qinghua ; et al. | 2013-09-19 |
| Programmable SFP or SFP+ module Grant 8,462,838 - Chen , et al. June 11, 2 | 2013-06-11 |
| Honeycomb ceramic particulate filtration substrate, a particulate filter and a filtration system as well as production methods thereof Grant 8,114,184 - Chen , et al. February 14, 2 | 2012-02-14 |
| Programmable Sfp Or Sfp+ Module App 20110134988 - Chen; Qinghua ; et al. | 2011-06-09 |
| Honeycomb Ceramic Particulate Filtration Substrate, a Particulate Filter and a Filtration System as Well as Production Methods Thereof App 20080236123 - Chen; Qinghua ; et al. | 2008-10-02 |
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