How many patents does
Sulzer Chemtech have?
patents
1,218
families
145
granted
342
applications
876
EP
203
US
168
CN
134
WO
70
JP
62
KR
61
RoW
520
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The report contains ten-year analysis with the following sections
- patent filing analysis
- worldwide filing analysis
- patent family analysis
- application analysis
- granted analysis
- classification analysis
- citation analysis
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Sulzer Chemtech
Top ten assignees appearing on patents
2009 - 2018
| sulzer chemtech | 870 |
| purac biochem | 34 |
| advanced technologies & innovations | 27 |
| zul'tser khemtekh | 20 |
| taxon | 16 |
| advanced tail-end oil company | 16 |
| sulzer mixpac | 14 |
| futerro | 11 |
| resitec participacoes | 7 |
| febex | 6 |
2009
| sulzer chemtech | 71 |
| febex | 3 |
| schinfa engineering | 1 |
| zul'tser khemtekh | 1 |
| kgi | 1 |
| salavatnefteorgsynthes | 1 |
| prompplast-14 | 1 |
2018
| sulzer chemtech | 79 |
| futerro | 4 |
| sgl carbon se | 4 |
| purac biochem | 3 |
| advanced technologies & innovations | 3 |
| deltamem | 1 |
Sulzer Chemtech
The top ten patent families are
|
Title of patent family (most common patent title) |
Family members |
Filing year |
|---|---|---|
| method for the manufacture of a polyhydroxy-carboxylic acid | 37 | 2011 |
| static mixing element | 28 | 2007 |
| contact tray for a mass transfer column | 27 | 2010 |
| process for the continuous production of polyesters | 25 | 2008 |
| method of mass transfer, structured packing and mass transfer apparatus for a small liqu… 🛈 | 22 | 2010 |
| a method for stabilizing a condensed phase composition including a cyclic ester in a pro… 🛈 | 22 | 2014 |
| separation method and apparatus for immiscible fluids | 21 | 2008 |
| method for removing an ester from a vapor mixture | 20 | 2012 |
| a process to prepare a polyester polymer composition comprising a polyester polymer havi… 🛈 | 19 | 2013 |
| mass transfer apparatus having a structured packing | 19 | 2009 |