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PURESPECTRUM INC

Overview
  • Total Patents
    14
About

PURESPECTRUM INC has a total of 14 patent applications. Its first patent ever was published in 2004. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and China. Its main competitors in its focus markets electrical machinery and energy and environmental technology are B & S ELEKTRONISCHE GERAETE GM, ROTAHEAT LTD and WUXI ORG MICROELECTRONICS CO LTD.

Patent filings in countries

World map showing PURESPECTRUM INCs patent filings in countries

Patent filings per year

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

Top inventors

# Name Total Patents
#1 King Ray James 8
#2 Crandall Earl F 4
#3 Smallwood Sr Robert C 2
#4 King Ray 2
#5 Smallwood Robert C 1
#6 King Ray J 1
#7 Crandall Robert G 1
#8 James King Ray 1

Latest patents

Publication Filing date Title
US2009295300A1 Methods and apparatus for a dimmable ballast for use with led based light sources
US2010176733A1 Automated Dimming Methods and Systems For Lighting
US2010225239A1 Methods and apparatus for a high power factor, high efficiency, dimmable, rapid starting cold cathode lighting ballast
US2009200965A1 Energy savings circuitry for a lighting ballast
US2009200952A1 Methods and apparatus for dimming light sources
WO2009099422A1 Methods and apparatus for a high power factor ballast having high efficiency during normal operation and during dimming
CN101606440A Be used for having the method and apparatus of high efficiency high power factor ballast at normal running and dimming period
US2009200951A1 Methods and Apparatus for Dimming Light Sources
US2005134198A1 Method and system for driving a plasma-based light source
US2005110428A1 High efficiency ballast for gas discharge lamps
US2005104537A1 High frequency electronic ballast with sine wave oscillator
US2005104539A1 High frequency electronic ballast with sine wave oscillator