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HILL HENRY A

Overview
  • Total Patents
    11
About

HILL HENRY A has a total of 11 patent applications. Its first patent ever was published in 1962. It filed its patents most often in WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets optics, measurement and audio-visual technology are NIKON PRECISION INC, DEN BOEF ARIE JEFFREY and WESTERBERG GERHARD.

Patent filings in countries

World map showing HILL HENRY As patent filings in countries
# Country Total Patents
#1 WIPO (World Intellectual Property Organization) 8
#2 United States 3

Patent filings per year

Chart showing HILL HENRY As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hill Henry A 11
#2 Gardner David W 1

Latest patents

Publication Filing date Title
US2010020180A1 Alignment metrology and resolution measurement system for imaging arrays
WO2008073486A2 Multiple-degree of freedom interferometer with compensation for gas effects
WO2006023612A2 Sub-nanometer overlay, critical dimension, and lithography tool projection optic metrology systems based on measurement of exposure induced changes in photoresist on wafers
WO2005067815A1 Stage alignment in lithography tools
WO2005045529A2 Characterization and compensation of errors in multi-axis interferometry system
US3153794A Toilet bowl ventilator