The Director of the United StatesPatent and Trademark Office Has received an application for a patent fora new and useful invention. The title anddescription of the invention are enclosed.The...
READ MORE
patent for invention Invention Name: High Voltage Switch Locking Device Inventor: Zhou Youdong; Hutuqiao; Chen Zhengjia Patent number: ZL200910102145.1 Patent application date: August 20, 2009 ...
READ MORE
patent for invention Invention Name: Three position Electric Operating Mechanism for Switchgear Inventor: Wang Puquan; Cao Hualei Patent number: Z201110288055.3 Patent application date: September...
READ MORE
patent for invention Invention Name: Control Method for Remote Control High Voltage Switch Inventor: Zhou Youdong; Xu Xiaozhong; Gao Songjiu; Gao Lihui Patent number: Z200910096016.6 Patent...
READ MORE
patent for invention Invention Name: Electric Operating Mechanism for Switchgear Inventor: Wang Puquan; Cao Hualei Patent number: ZL2011 1 0288316.1 Patent application date: September 26, 2011 ...
READ MORE
patent for invention Invention Name: Sealed Insulated Outdoor High Voltage Switchgear Inventor: Zhang Guichao; Zhou Youdong Patent number: ZL20141 0174752. X Patent application date: April 28,...
READ MORE
patent for invention Invention Name: A Remote Control System and Method for High Voltage Switches Inventors: Zhou Youdong, Xu Xinmin, Gao Lihui Patent number: ZL200410017656.0 Patent application...
READ MORE
patent for invention Invention Name: Outdoor High Voltage Isolation Switch Closing and Opening Device Inventor: Zhou Youdong: Hu Tuqiao Patent number: ZL200610050556.7 Patent application date:...
READ MORE