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YAO TZU LI

Overview
  • Total Patents
    17
About

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.

Patent filings per year

Chart showing YAO TZU LIs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Yao Tzu 11
#2 Tzu Li Yao 1
#3 Lee Shih-Ying 1
#4 Yao Tzu Li 1

Latest patents

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