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  1. Technology classes
  2. /D · Textiles
  3. /D06 · Treatment of textiles or the like
  4. /D06P · Dyeing or printing textiles
  5. /D06P 3/00 · Special processes of dyeing or printing textiles, or dyeing leather, furs, or
  6. /D06P 3/02 · Material containing basic nitrogen
  7. /D06P 3/04 · Containing amide groups
  8. /D06P 3/24 · Polyamides
  9. /D06P 3/28
D06P 3/28

Preparing azo dyes on the material

D06P3/28 (Preparing azo dyes on the material) appears on 3 US grants and 5 published applications in this corpus.

Search patents in D06P

Where it sits

  1. DTextiles
  2. D06Treatment of textiles or the like
  3. D06PDyeing or printing textiles
  4. D06P 3/00Special processes of dyeing or printing textiles, or dyeing leather, furs, or
  5. D06P 3/02Material containing basic nitrogen
  6. D06P 3/04Containing amide groups
  7. D06P 3/24Polyamides
  8. D06P 3/28Preparing azo dyes on the material
Granted patents
3
Published applications
5
Assignees
5
Inventors
14
Latest grant
5 Jul 2022

Filings by year

Granted patentsPublished applications
D06P 3/28: granted patents and published applications per publication year
YearGranted patentsPublished applications
200401
200500
200600
200700
200800
200900
201000
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201201
201301
201410
201501
201600
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201800
201911
202000
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202210

200420142022

By publication year.

Recent patents

  • Basic dye mixtures for aramid fibres5 Jul 2022US 11,377,787 B2DyStar Colours Distribution GmbH
  • Apparatus and method for applying colors and performance chemicals on carpet yarns1 Jan 2019US 10,167,593 B2Invista North America S A R L
  • Azo dyes27 May 2014US 8,734,534 B2Kemira Oyj
  • Basic dye mixtures for aramid fibres7 Nov 2019US 2019/0338461 A1DyStar Colours Distribution GmbH
  • Apparatus and Method For Applying Colors and Performance Chemicals On Carpet Yarns20 Aug 2015US 2015/0233052 A1Invista Technologies S.A R.L.
  • Azo dyes3 Oct 2013US 2013/0255007 A1Kemira Oyj
  • Fiber-reactive azo dyes, preparation thereof and use thereof15 Nov 2012US 2012/0284934 A1DyStar Clours Deutschland GmbH
  • Dyed and/or printed non-woven fabric7 Oct 2004US 2004/0194234 A1

Most cited

By later US patents

No patent in this class has been cited by a later US patent yet.

Top assignees

Documents
  • DCDyStar Colours Distribution GmbH2
  • KOKemira Oyj2
  • DCDyStar Clours Deutschland GmbH1
  • INInvista North America S A R L1
  • ITInvista Technologies S.A R.L.1

Often classified with

  • C09BOrganic dyes or closely-related compounds for producing dyes5
  • D06MTreatment, not provided for elsewhere in class d06, of fibres, threads, yarns2
  • D21HPulp compositions2
  • C09DCoating compositions1

Documents that also carry the other class.

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