Learn more

LI DEFU

Overview
  • Total Patents
    20
  • GoodIP Patent Rank
    183,180
About

LI DEFU has a total of 20 patent applications. Its first patent ever was published in 1996. It filed its patents most often in China, United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets transport, civil engineering and audio-visual technology are XIAMEN OVERSEAS CHINESE ELECTRONIC ENTPR CO LTD, AKENORI PTE LTD and HUNAN NEWSMY NAVIGATION & LOCATION SERVICE TECH CO LTD.

Patent filings in countries

World map showing LI DEFUs patent filings in countries

Patent filings per year

Chart showing LI DEFUs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Li Defu 20
#2 Bernstein Alon 1
#3 Li Le 1
#4 Sowinski Pawel 1
#5 Goguen Robert 1
#6 Yang Fuqin 1
#7 Liu Tong 1

Latest patents

Publication Filing date Title
CN110726194A Air filtering device of fresh air equipment
CN105857230A Automobile automatic submergence prevention device and control method thereof
CN105799627A Car body posture balance sensor of automatic automobile flooding-proof device
CN104905339A Mushroom soup and cooking method thereof
CN103722608A Concrete block injection molding machine and production process flow thereof
CN103752554A Fast cleaning method for building plastic templates
CN103711250A Quoin brick of hollowed automatic centering seam-locking shock-resistant wall brick
CN103664089A Wall brick made of novel material and provided with novel structure as well as novel wall forming method thereof
CN103726603A Hollow automatic-centering stitch-locking anti-seismic wall body brick
CN103526924A Quick assembling-disassembling plastic building angle adjustable formwork
CN103485535A Stayed pole device for quickly disassembling and assembling plastic building templates
CN103470025A Quickly dismounted plastic plane template and splicing method thereof
CN103470024A Radian-adjustable fast disassembled and assembled plastic cambered surface template
CN103470034A Supplementary template group of quickly dismounted plastic template and determination method thereof
US2010154016A1 Multi-channel ranging for a cable modem
WO2009082882A1 Gravity-operated opening and closing gate controlled by water level
CN101062185A Medicine for treating toothache and oral ulcer and its preparing process
CN1412555A Needle type detection method for wire breakage in anchor in stretching construction
CN1210958A Multiple hearth (cavity) burning furnace
CN1159363A Vertical orifice column for smoke purification