CHENG DAH YU has a total of 17 patent applications. Its first patent ever was published in 1990. It filed its patents most often in EPO (European Patent Office), WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets electrical machinery and energy, machines and mechanical elements are BANDAK AS, SLICK CORP and HARVARD CORP.
# | Country | Total Patents | |
---|---|---|---|
#1 | EPO (European Patent Office) | 5 | |
#2 | WIPO (World Intellectual Property Organization) | 5 | |
#3 | United States | 3 | |
#4 | Canada | 2 | |
#5 | Australia | 1 | |
#6 | China | 1 |
# | Industry | |
---|---|---|
#1 | Electrical machinery and energy | |
#2 | Machines | |
#3 | Mechanical elements | |
#4 | Optics | |
#5 | Chemical engineering | |
#6 | Textiles and paper | |
#7 | Consumer goods |
# | Technology | |
---|---|---|
#1 | Unspecified technologies | |
#2 | Dynamo-electric machines | |
#3 | Linoleum | |
#4 | Lighting device details | |
#5 | Separation | |
#6 | Fiber treatments | |
#7 | Special light sources | |
#8 | Optical systems | |
#9 | Pipes | |
#10 | Fluid dynamics |
# | Name | Total Patents |
---|---|---|
#1 | Cheng Dah Yu | 16 |
#2 | Yu Cheng Dah | 1 |
Publication | Filing date | Title |
---|---|---|
US2008308653A1 | Method and apparatus for balancing flow through fuel nozzles | |
US2008295520A1 | Dynamic control system to implement homogenous mixing of diluent and fuel to enable gas turbine combustion systems to reach and maintain low emission levels | |
WO2004112934A2 | Method of producing a porous membrane and waterproof, highly breathable fabric including the membrane | |
WO0017989A1 | A synchronous machine with rotating brushes | |
CN1086581A | Advanced regenerative parallel compound dual fluid heat engine-advanced cheng cycle (ACC) | |
EP0723626A1 | A cheng dual fluid heat engine and a method of operation thereof |