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JOHN MFG LTD

Overview
  • Total Patents
    93
About

JOHN MFG LTD has a total of 93 patent applications. Its first patent ever was published in 1975. It filed its patents most often in Hong Kong, United Kingdom and United States. Its main competitors in its focus markets electrical machinery and energy, thermal processes and medical technology are YUEN SE KIT, SAYEKI GORO and FROMREIDE HANS-JACOB.

Patent filings in countries

World map showing JOHN MFG LTDs patent filings in countries

Patent filings per year

Chart showing JOHN MFG LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Yuen Se Kit 29
#2 Yuen John Se-Kit 26
#3 Kit Yuen Se 12
#4 Yuen John Se Kit 7
#5 Yuen Se-Kit 5
#6 Lee Ka-Lai 3
#7 Cheung Kam-Wing 3
#8 Tsoi Leung-Woon 3
#9 Se-Kit Yuen 1
#10 Se-Kit Y 1

Latest patents

Publication Filing date Title
HK1170370A2 A led night light
HK1147165A2 Low-voltgae led unit
HK1088776A2 Self-serve acupuncture-point massaging ball
HK1084292A2 Serachlight with electro-optical cold light emitting feature
HK1082895A2 A low voltage direct current light tube
US2006238997A1 Universal chargeable electro-optical illuminating lamp
US2006018805A1 Photo-electronic air purifying disinfector
DE102005021429A1 Halogen search light for use in e.g. marine, has rectangular-cylinder housing with adjustable light source and transparent front flat board, where set of heat release covers are attached at end portion of housing
HK1071661A2 Electronic memo dispenser.
HK1069724A2 Stormer hi-tech super halogen spotlight
HK1069733A2 portable multi-function cooler with am/fm radio.
HK1069281A2 Multi function emergency ready light.
HK1070241A2 Portable multi-function electro-optical searchlight.
HK1070236A2 Electro-optical air purifying & dust collector.
HK1071668A2 Electro.optical air purifier with ionizer.
HK1069722A2 Rechargeable flashlight.
HK1074345A2 Vehicular photoelectron air purifier.
HK1069280A2 Rechargeable halogen search light.
HK1066404A2 The water filters of sterilization to kill viral vacuuming machine.
HK1069071A2 Rechargeable halogen searchligh with led & fluorescent light.