Learn more

WRAY OPTICAL WORKS LTD

Overview
  • Total Patents
    19
About

WRAY OPTICAL WORKS LTD has a total of 19 patent applications. Its first patent ever was published in 1943. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets optics and machine tools are GUANGZHOU CHIOPT OPTOTECH CO LTD, ISCO OPTISCHE WERKE GMBH and NANJING ANG CHI PHOTOELECTRIC TECH CO LTD.

Patent filings in countries

World map showing WRAY OPTICAL WORKS LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 15
#2 United States 4

Patent filings per year

Chart showing WRAY OPTICAL WORKS LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Optics
#2 Machine tools

Focus technologies

# Technology
#1 Optical systems
#2 Cameras
#3 Grinding or polishing devices

Top inventors

# Name Total Patents
#1 Gorrie Wynne Charles 4
#2 Wynne Charles Gorrie 2
#3 Bond Raymond Francis 1
#4 Edwards Charles Alfred 1

Latest patents

Publication Filing date Title
GB912017A Improvements in iris diaphragms
GB762591A Improvements relating to optical objectives
GB694246A Improvements relating to feeding mechanisms
GB697910A Improvements relating to optical lenses
GB696902A Improvements relating to optical lenses
GB689916A Improvements relating to optical lenses
GB679734A Improvements relating to photographic shutters
GB680221A Improvements relating to microscope objectives
US2509554A Catadioptric system with correcting lens means
US2487750A Wide aperture objective having two meniscus dispersive components and two or more collective components
GB618253A Improvements in or relating to optical objectives
GB604883A Improvements relating to optical lenses
US2499264A Large aperture spherically corrected objective having two outer positive components and two inner negative meniscus components with one cemented surface
US2487749A Four component optical objective
GB577763A Improvements relating to optical lenses
GB575076A Improvements relating to optical lenses
GB575075A Improvements relating to optical lenses
GB571567A Improvements relating to optical condenser systems
GB563544A Improvements relating to apparatus for photographic copying