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CHENG CHEN YEN

Overview
  • Total Patents
    74
About

CHENG CHEN YEN has a total of 74 patent applications. Its first patent ever was published in 1965. It filed its patents most often in United States, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets environmental technology, chemical engineering and thermal processes are ENZENHOFER MATTHIAS, HOISS JAKOB and GARFIELD INT INVEST LTD.

Patent filings per year

Chart showing CHENG CHEN YENs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cheng Chen-Yen 63
#2 Cheng Sing-Wang 26
#3 Cheng Wu-Cheh 11
#4 Cheng Wu-Cheng 6
#5 Cheng Wu-Ching 3
#6 Chen-Yen Cheng 3
#7 Cheng Sin-Wang 2
#8 Chiennen Chiengu 2
#9 Cheng Chen-Yen La Playa St N E 1
#10 Cheng Sing-Wang Fourth Floor N 1

Latest patents

Publication Filing date Title
AU6454296A Process and apparatus for vapor pressure enhancement
US5209071A Immediate heat upgrading air conditioning system and associated cool thermal storage
CN1066198A Solid-liquid-vapor multiple phase transformation processes with coupled absorption-melting
AU7541191A Absorption vapor pressure enhancement process and its applications in high level refrigeration and separation processes
EP0513230A1 Prefabricated enclosed double plate heat transfer panel and its use
AU5943490A Methods and apparatuses for pressurizing and depressurizing fluid streams
US5061306A Multiple effect absorption refrigeration processes and apparatuses for use therein
US5059228A Cool thermal storage and/or water purification by direct contact in-situ crystal formation and crystal melting operations
US5080704A Solid-liquid-vapor multiple phase transformation process with coupled absorption-melting operations
AU3286289A Vacuum freezing process and vapor processing unit
US4809519A Methods and apparatuses for conducting solid-liquid-vapor multiple phase transformation operations
US4810274A Vacuum freezing ambient pressure melting (VFAPM) process and sub-triple point vapor processing unit for use therein
US4654064A Primary refrigerant eutectic freezing process [PREUF Process]
US4650507A Wet and dry distillative freezing process for separating mixtures and apparatuses for use therein
AU4356985A Wet and dry distillative freezing process and apparatus
US4578093A Wet and dry distillative freezing process for separating mixtures and apparatuses for use therein
US4505728A Vacuum freezing multiple phase transformation process and apparatus for use therein
US4451273A Distillative freezing process for separating volatile mixtures and apparatuses for use therein
US4420318A Vacuum freezing process with multiple phase transformations of low pressure vapor
US4433558A Parallel contact distillative freezing process for separating volatile mixtures and apparatuses for use therein