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CHEMED CORP

Overview
  • Total Patents
    279
About

CHEMED CORP has a total of 279 patent applications. Its first patent ever was published in 1967. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets environmental technology, basic materials chemistry and surface technology and coating are FREMONT IND INC, HUBEI SANHUAN CHEMICAL NEW MAT CO LTD and HUANG JISHENG.

Patent filings in countries

World map showing CHEMED CORPs patent filings in countries

Patent filings per year

Chart showing CHEMED CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Jacob Jose T 23
#2 Hwa Chih M 22
#3 Tesdahl Thomas C 14
#4 Cuisia Dionisio G 13
#5 Hwa Chih Ming 12
#6 Brungs Charles A 9
#7 Sabatelli Philip M 9
#8 Paul Stewart N 8
#9 Loder Edwin R 8
#10 Salutsky Murrell L 7

Latest patents

Publication Filing date Title
JPH06263917A Electrically conductive composition
JPS62202482A Manufacture of electric contact
US4719083A Composition useful as corrosion inhibitor, anti-scalant and continuous biocide for water cooling towers and method of use
US4681696A Solid stabilized active halogen-containing detergent compositions and methods
CA1231612A Stabilized active halogen-containing detergent compositions and methods
EP0121631A2 Method of removing scale
ZA8207640B Lubrication of conveyor chains
US4353745A Cleaner for anti-graffiti system
GB2087717A Dishwasher and method of controlling operation of same
US4406812A Deodorant and reconditioner for metal working fluids
JPS5691856A Method of collecting fly ash
ES8201839A3 Procedure for improving the characteristics of collecting particles dragged in a gas current charged with particles (Machine-translation by Google Translate, not legally binding)
US4306991A Scale inhibition
US4298018A Pumping process
JPS5734195A Air heater corrosion prevention and composition therefor
US4365200A Self alarming four double electrodes conductivity cell
US4362994A Self alarming five single electrodes conductivity cell
JPS55118999A Slurry detergent
US4278635A Method for deoxygenation of water
US4256703A Fly ash collection