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EM4 INC

Overview
  • Total Patents
    13
About

EM4 INC has a total of 13 patent applications. Its first patent ever was published in 2003. It filed its patents most often in United States and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets optics, semiconductors and measurement are CT A PHOTONICS INC, OPTOS KK and CHANG KANG CHEMICAL CO LTD.

Patent filings in countries

World map showing EM4 INCs patent filings in countries

Patent filings per year

Chart showing EM4 INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rosiewicz Alex 9
#2 Zhu Ninghui 6
#3 Matsuki Michio 4
#4 Kaluzhny Mikhail 3
#5 Rosiewics Alex 1
#6 Wakelin Suzanne 1

Latest patents

Publication Filing date Title
US2008317427A1 Hermetic fiber feedthrough
WO2009025662A1 Reducing heating from non-coupled light in power transmitting optical fibers
WO2008036468A2 System and method for built-in testing of a fiber optic transceiver
US2008260330A1 Alignment with thin bonding layer of optical components
US7309175B1 Reducing heating from non-coupled light in power transmitting optical fibers
US2007098332A1 Package for optical components
US2007040166A1 Compound eye image sensor design
US2006219877A1 Wavelength stabilization for broadband light sources
US7160368B1 System and method for gettering gas-phase contaminants within a sealed enclosure