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ENVIRONMENTAL TEST SYSTEMS

Overview
  • Total Patents
    49
About

ENVIRONMENTAL TEST SYSTEMS has a total of 49 patent applications. Its first patent ever was published in 1987. It filed its patents most often in United States, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets measurement, machines and chemical engineering are DADE BEHRING INC, MAYEAUX DONALD P and TOKHTUEV EUGENE.

Patent filings per year

Chart showing ENVIRONMENTAL TEST SYSTEMSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Evtodienko Yuriy Vladimirovich 6
#2 Makowski Eugenia 6
#3 Blake Kenneth Allen 6
#4 Peachey-Stoner Robert A 6
#5 Terry Carol Ann 5
#6 Stephenson Harry Thomas 5
#7 Kreiser Thomas Harry 5
#8 Medvedev Boris Ivanovich 5
#9 Rupe Chauncey Orvis 4
#10 Rupe Chaucey Orvis 3

Latest patents

Publication Filing date Title
WO0239081A2 Determination of low range total chlorine residuals
US6638480B2 High sensitivity test system for the colorimetric determination of specific gravity or total dissolved solids in aqueous samples
CA2323954A1 Test strip and method for detection of high levels of chloride for swimming pools and spas
US6376252B1 Preparation and method for cat box filler additive capable of detecting feline lower urinary tract disease (FLUTD)
AU4898297A Device and method for the determination of water
US6030842A Method, composition and device for the determination of free halogens in aqueous fluids
US5858797A Test composition, device and method for the colorimetric determination of phosphorus
US5801061A Method for the colorimetric determination of analytes in the presence of interfering particulate materials
US5856199A Colorimetric dry reagent test device and method for the determination of analytes in solutions containing interfering colored substances
CA2160233A1 Method and device for the determination of polymeric biguanides in aqueous fluids
AU6707494A Method and device for the determination of polymeric biguanides in aqueous fluids
US5229299A Test devices and methods for determining halides in aqueous samples
WO9217768A1 Multilayer test device matrix structure
WO9216648A1 Chemiluminescent test for microorganisms
AU616727B2 Systems for determining cyanuric acid in water
WO8902596A1 Solid state test device
US4855239A Test composition and device for the determination of cyanuric acid in water