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DOLLFUS & NOACK

Overview
  • Total Patents
    19
About

DOLLFUS & NOACK has a total of 19 patent applications. Its first patent ever was published in 1959. It filed its patents most often in France, Germany and Denmark. Its main competitors in its focus markets chemical engineering, textiles and paper and medical technology are AUTO KLEAN STRAINERS LTD, ANHUI YUANCHEN ENV PROT TECH CO LTD and ZHEJIANG HONG SHENG ENVIRONMENTAL PROTECTION TECH GROUP CO LTD.

Patent filings per year

Chart showing DOLLFUS & NOACKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dri Jean-Pierre 3
#2 Dri J 1
#3 Specklin Paul 1
#4 Brand R 1
#5 Lionnet Maurice 1
#6 Dri J P 1

Latest patents

Publication Filing date Title
IE50994B1 Dry filter for filtering or cleansing gaseous flow comprising organic fibres grafted with active monomeres
PT72648A Textile filter for gas flows comprising organic fibers grafted with active monomers
DE3038174A1 FILTER MATERIAL FOR THE DEDUSTING OF HOT GASES
FR2467623A1 Filter sleeve in dust removal plant for cleaning gas - where both ends of sleeve are provided with clamping which are easily removed
FR2467256A1 Composite porous rubber covers for (laundry) roller iron - combines simplicity, elasticity and corrosion-resistance
DE1140176B Filter media made of single-layer fabric with different weaves in the filtration zone and their limitation for liquid or gaseous flow media