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WORLD PRECISION INSTR INC

Overview
  • Total Patents
    18
About

WORLD PRECISION INSTR INC has a total of 18 patent applications. Its first patent ever was published in 1989. It filed its patents most often in United States, Germany and United Kingdom. Its main competitors in its focus markets measurement, optics and medical technology are MCMILLAN NORMAN, OPTOFLUIDICS INC and J & M ANALYTIK AG.

Patent filings in countries

World map showing WORLD PRECISION INSTR INCs patent filings in countries
# Country Total Patents
#1 United States 14
#2 Germany 2
#3 United Kingdom 1
#4 Japan 1

Patent filings per year

Chart showing WORLD PRECISION INSTR INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Fein Harry 5
#2 Liu Su Y 4
#3 Liu Su Yi 4
#4 Liu Su-Yi 3
#5 Che Diping 2
#6 Wang Rong 2
#7 Su I Riu 1
#8 Zhelyaskov Valentin 1
#9 Shirazi Shahram Z 1
#10 Dasgupta Purnendu K 1

Latest patents

Publication Filing date Title
US6104485A Method and apparatus for optical measurement of very small fluid samples
US5980036A Eyeglass devices with removable auxiliary lenses or frames
US6020207A Optical analysis technique and sensors for use therein
US6016372A Chemical sensing techniques employing liquid-core optical fibers
US6011882A Chemical sensing techniques employing liquid-core optical fibers
US5827420A Method and apparatus for the generation of nitric oxide
US5636303A Filterless chromatically variable light source
US5604587A Long capillary waveguide raman cell
US5570447A Aqueous fluid core waveguide
US5444807A Micro chemical analysis employing flow through detectors
US5416879A Apparatus and method for measuring light absorption in small aqueous fluid samples
US5454491A Non-metallic precision fluid transfer devices
US5294325A Miniaturized fluid conveying device and methods of use thereof
US4912060A Method and apparatus for electrical testing of membranes