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LI RUOLIN

Overview
  • Total Patents
    13
  • GoodIP Patent Rank
    221,670
About

LI RUOLIN has a total of 13 patent applications. Its first patent ever was published in 2003. It filed its patents most often in United States, China and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets optics, audio-visual technology and telecommunications are BEIJING KEYI HONGYUAN PHOTOELECTRIC TECH CO LTD, AHURA CORP and ZENTRALINSTITUT FUER OPTIK UND.

Patent filings in countries

World map showing LI RUOLINs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Li Ruolin 12
#2 Tran Ut 3
#3 Ma Yanan 2
#4 Hu Yufeng 2
#5 Fan Wenjun 1
#6 Sweetser John 1
#7 Grunnet-Jepsen Anders 1
#8 Li Jinshan 1
#9 Ruolin Li 1

Latest patents

Publication Filing date Title
US2020400492A1 Method, system and apparatus for a raman spectroscopic measurement system
CN103457155A Hybrid integrated composite cavity wave length-tunable laser transmitter
CN103487881A Tunable optical filter and chip integrated device with tunable optical filter
US2013322472A1 Wavelength selective and tunable laser device
CN102605997A Two-piece chain soft key lockset
US2013182728A1 Wavelength tunable external cavity laser
US2013182729A1 Wavelength locker design for precise channel locking of a widely tunable laser
CN102412504A Phase coupling reflection grating feedback-based wavelength tunable laser
CN102354909A Distributed Bragg reflector (DBR)-based external cavity wavelength-tunable laser
US8125856B1 Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive
US8200054B1 High efficiency grating coupling for light delivery in EAMR
US8098999B2 Multiple channel power monitor