YAO TZU LI has a total of 17 patent applications. Its first patent ever was published in 1953. It filed its patents most often in United Kingdom, Canada and Germany. Its main competitors in its focus markets environmental technology, chemical engineering and measurement are HEINZL WOLFGANG, SEEONE CO LTD and LG NANOH2O INC.
# | Country | Total Patents | |
---|---|---|---|
#1 | United Kingdom | 5 | |
#2 | Canada | 3 | |
#3 | Germany | 2 | |
#4 | WIPO (World Intellectual Property Organization) | 2 | |
#5 | Switzerland | 1 | |
#6 | Denmark | 1 | |
#7 | EPO (European Patent Office) | 1 | |
#8 | France | 1 | |
#9 | United States | 1 |
# | Industry | |
---|---|---|
#1 | Environmental technology | |
#2 | Chemical engineering | |
#3 | Measurement | |
#4 | Thermal processes | |
#5 | Machines |
# | Name | Total Patents |
---|---|---|
#1 | Li Yao Tzu | 11 |
#2 | Tzu Li Yao | 1 |
#3 | Lee Shih-Ying | 1 |
#4 | Yao Tzu Li | 1 |
Publication | Filing date | Title |
---|---|---|
EP0063141A1 | Improved distillation apparatus. | |
DE2849802A1 | Distilling appts. for e.g. concn. of fruit juice - with tumbling heat transfer tubes carrying thin film of descending liquid on inside walls | |
US4000659A | Zero stiffness taut ribbon rotary suspension systems | |
GB963934A | Fluid pressure transducer | |
GB774328A | Transducer | |
GB734992A | Improvements relating to a mass-flow measuring device | |
CA607660A | Mass flowmeter | |
CA568749A | Transducer of the strain gage type | |
CA698347A | Fluid pressure transducer |