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JOHNSON RALPH H

Overview
  • Total Patents
    14
About

JOHNSON RALPH H has a total of 14 patent applications. Its first patent ever was published in 2004. It filed its patents most often in United States. Its main competitors in its focus markets optics, semiconductors and micro-structure and nano-technology are QSI CO LTD, BANDWIDTH9 INC and GEN NANO OPTICS LTD.

Patent filings in countries

World map showing JOHNSON RALPH Hs patent filings in countries
# Country Total Patents
#1 United States 14

Patent filings per year

Chart showing JOHNSON RALPH Hs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Johnson Ralph H 14
#2 Biard James Robert 3
#3 Penner R Scott 3
#4 Wade Jerome K 2
#5 Guenter James 2
#6 Morales Gilberto 1
#7 Macinnes Andrew N 1
#8 Graham Luke A 1
#9 Tatum Jimmy Alan 1
#10 Fitzgerald Colby 1

Latest patents

Publication Filing date Title
US2011096803A1 Asymmetric DBR pairs combined with periodic and modulation doping to maximize conduction and reflectivity, and minimize absorption
US2007254393A1 Passivation of VCSEL sidewalls
US2006198412A1 Grating-coupled surface emitting laser with gallium arsenide substrate