ZENG XIANGWEI has a total of 20 patent applications. Its first patent ever was published in 1987. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets mechanical elements, machines and chemical engineering are FUJI METAL MFG, HOKE INC and HAWLE & CO E.
# | Country | Total Patents | |
---|---|---|---|
#1 | China | 10 | |
#2 | WIPO (World Intellectual Property Organization) | 5 | |
#3 | Australia | 2 | |
#4 | United States | 2 | |
#5 | EPO (European Patent Office) | 1 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Machines | |
#3 | Chemical engineering | |
#4 | Measurement | |
#5 | Environmental technology |
# | Technology | |
---|---|---|
#1 | Venting or aerating devices | |
#2 | Pipes | |
#3 | Unspecified technologies | |
#4 | Cleaning | |
#5 | Measuring volume | |
#6 | Reduction of greenhouse gas emissions | |
#7 | Servomotors |
# | Name | Total Patents |
---|---|---|
#1 | Zeng Xiangwei | 19 |
#2 | Huang Jingyue | 1 |
#3 | Chen Kun | 1 |
#4 | Xiangwei Zeng | 1 |
#5 | Qiu Xiaoping | 1 |
Publication | Filing date | Title |
---|---|---|
CN102426864A | Passive emergency cooling system for severe accident in reactor | |
CN101220876A | Shuttle type check valve | |
CN101363574A | Passive shuttle type device for preventing water hammer and thrash | |
CN1651131A | Shuttle type bitank alternating work system | |
CN1419640A | A protection device in event of pipe rupture | |
WO0070250A1 | A fluid control valve for pig | |
CN1360669A | Fluid control valve for pig | |
CN1361849A | A fluid control double position valve for purging | |
CN1274051A | Dual-sleeve valve with fluid-controlled pipe cleaning | |
CN1010118B | Adjustable differential flow shuttle valve |