How many patents does
Ningbo Dafa Chemical Fiber Company have?

patents
234
families
204
granted
24
applications
210
CN
227
WO
7

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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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Ningbo Dafa Chemical Fiber Company
Top ten assignees appearing on patents

Ningbo Dafa Chemical Fiber Company
The top ten patent families are

Title of patent family
(most common patent title)
Family
members
Filing
year
skin-core type recycled polyester staple fiber and preparation method thereof 3 2013
sheath-core type polyester short fiber with core layer made of recycled polyester and pr… 🛈 2 2013
automatic draining and stirring device of screw extruder 2 2014
paper scraps separator of bottle flake raw materials 2 2009
preparation method of antibacterial flame-retardant sound-insulation heat-insulation pol… 🛈 2 2012
preparation method of anti-flaming recyle polyester staple fiber 2 2012
method for separating renewable polyester bottle flakes by using method of specific grav… 🛈 2 2012
pelletizing device 2 2012
manufacture method for producing high-shrinkage regenerated terylene short fiber with re… 🛈 2 2012
auxiliary device of polyster fibers for changing barrels automatically and quantitatively 2 2012