Learn more

C & H WERKZEUGMASCHINEN GMBH

Overview
  • Total Patents
    11
About

C & H WERKZEUGMASCHINEN GMBH has a total of 11 patent applications. Its first patent ever was published in 1991. It filed its patents most often in Germany, EPO (European Patent Office) and China. Its main competitors in its focus markets chemical engineering, basic materials chemistry and environmental technology are LEOPOLD CO INC F B, PWT PROJECTS LTD and JOSEPH ALLEN PICKARD.

Patent filings per year

Chart showing C & H WERKZEUGMASCHINEN GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Combrowski Zbigniew 10
#2 Hamma Armin 4
#3 Hammer Armin 1
#4 Combrowski Z 1
#5 Hamma A 1
#6 Waizenegger Klaus 1

Latest patents

Publication Filing date Title
CN1372486A Device for maintaining and cleaning a working medium
DE19937701A1 Device for maintaining and cleaning a working medium
DE19724172A1 Purification of engineering oils, removing submicron particles in transverse flow filtration
DE19718217A1 Purification of work medium especially from cooling lubricant systems, emulsions or solutions
DE19718215A1 Purification of work medium, especially from cooling lubricant systems, emulsions or solutions
DE4319644A1 Disposal unit
DE4243865A1 Equipment for grinding flutes and end face of twist drills etc.
US5223128A Apparatus for cleaning a bath of liquid with conveyor belt and adjustable stripper