CPC Main Group
D21H 19/00 Coated paper (coated fibreboard D21J1/08); Coating material (recording sheets characterised by the coating used to improve ink, dye or pigment receptivity B41M5/50)
6 direct subcodes
Child Classifications
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- D21H 19/02 Metal coatings (D21H19/66 takes precedence)
- D21H 19/10 Coatings without pigments (D21H19/66 takes precedence)
- D21H 19/36 Coatings with pigments (D21H19/66 takes precedence; metal powder D21H19/06)
- D21H 19/66 Coatings characterised by a special visual effect, e.g. patterned, textured (marbled paper D21H27/04)
- D21H 19/72 Coated paper characterised by the paper substrate
- D21H 19/80 Paper comprising more than one coating (D21H19/02 takes precedence)
Top Applicants
Top 10 applicants by patent filingsfor class D21, 2013–2023, worldwide · Source: EPO PATSTAT
- VOITH PATENT DE 1,857
- STORA ENSO FI 1,552
- KEMIRA FI 1,173
- KIMBERLY-CLARK CORPORATION US 1,107
- VALMET TECHNOLOGIES FI 965
- VALMET SE 943
- P&G (PROCTER & GAMBLE COMPANY) US 941
- OMYA INTERNATIONAL CH 821
- UPM-KYMMENE CORPORATION FI 512
- SEIKO EPSON CORPORATION JP 501