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COHAND TECHNOLOGY CO LTD

Overview
  • Total Patents
    57
About

COHAND TECHNOLOGY CO LTD has a total of 57 patent applications. Its first patent ever was published in 1997. It filed its patents most often in Taiwan, China and United States. Its main competitors in its focus markets thermal processes, environmental technology and electrical machinery and energy are HUANG GUOHE, WUXI TONGFANG ARTIFICIAL ENV CO LTD and GD MIDEA HEATING & VENTILATING EQUIPMENT CO LTD.

Patent filings in countries

World map showing COHAND TECHNOLOGY CO LTDs patent filings in countries
# Country Total Patents
#1 Taiwan 30
#2 China 14
#3 United States 13

Patent filings per year

Chart showing COHAND TECHNOLOGY CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Weng Guo-Liang 28
#2 Weng Kuo-Liang 15
#3 Guoliang Weng 10
#4 Weng Jing-Ru 9
#5 Weng Jing-Wen 7
#6 Jingru Weng 6
#7 Ke Ming-Tsuen 5
#8 Weng Jian-Lun 4
#9 Jingying Cai 4
#10 Jianlun Weng 4

Latest patents

Publication Filing date Title
CN101619902A Energy storage and conversion device for buildings
CN101586856A Special whole-external air natural air conditioner unit for lifting driveway of elevator
CN101586851A Mobile type air conditioner
TW200938774A Movable air conditioner
TW200938776A Full outside air natural air conditioner set for use in elevator hoistway
CN101498493A Control method for route and cross section flux of regulation air passing through heat exchanger
TW200922664A Feedback control device of video games, and controlling method thereof
TW200923288A Air conditioning box capable of regulating air path and cross-sectional flow rate through heat exchanger and its control method
TW200821513A Method to control air conditioning system to enable heat source when high temperature difference and supply wind when low temperature difference
US2008034766A1 Method for controlling selection of air conditioning environmental modes according to user's requirements
CN101122412A Air conditioner for elevator
CN101118078A Control method capable of selecting air conditioner surroundings situation mode according to user requirement
TW200639356A Air conditioner for elevator
TW200637999A A user-based control algorithm for atmosphere selection of an air conditioned environment
CN101059262A Whole-heat compound type air-conditioner
CN101059263A Functional type heat exchange system
TW200739004A Total-heat compound air conditioner
TW200739005A Functional total-heat exchange system
US2007163292A1 Thin refrigeration air conditioner having a greater temperature difference
CN1996196A Air-feeding and temperature controlling method