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.
# | Country | Total Patents | |
---|---|---|---|
#1 | France | 9 | |
#2 | Germany | 2 | |
#3 | Denmark | 1 | |
#4 | EPO (European Patent Office) | 1 | |
#5 | Spain | 1 | |
#6 | Finland | 1 | |
#7 | Ireland | 1 | |
#8 | Norway | 1 | |
#9 | Portugal | 1 | |
#10 | WIPO (World Intellectual Property Organization) | 1 |
# | Industry | |
---|---|---|
#1 | Chemical engineering | |
#2 | Textiles and paper | |
#3 | Medical technology | |
#4 | Consumer goods | |
#5 | Surface technology and coating | |
#6 | Machines |
# | Technology | |
---|---|---|
#1 | Separation | |
#2 | Fiber treatments | |
#3 | Object sterilising | |
#4 | Laundering textiles | |
#5 | Making textile fabrics | |
#6 | Live-saving devices | |
#7 | Shaping of plastics | |
#8 | Printing processes | |
#9 | Layered products | |
#10 | Linoleum |
# | 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 |
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 |