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CPC Subgroup
C14C 3/04

Mineral tanning

Full Title

Tanning; Compositions for tanning > Chemical tanning > Mineral tanning

Filing statistics

CPC C14C 3/04 belongs to the parent subclass C14C, which recorded 5,302 patent applications worldwide between 2013 and 2023. Annual filings grew from 175 in 2013 to 317 in 2023 (+81%), peaking at 739 applications in 2017. The most active applicants in class C14 are SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY (183 applications), SICHUAN UNIVERSITY (135 applications) and XINGYE LEATHER TECHNOLOGY COMPANY (93 applications).

Source: EPO PATSTAT, worldwide filings

1 direct subcode

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class C14, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY 183
  2. SICHUAN UNIVERSITY 135
  3. XINGYE LEATHER TECHNOLOGY COMPANY 93
  4. AGFA-GEVAERT BE 80
  5. MODERN MEADOW US 78
  6. XEROS GB 72
  7. STAHL INTERNATIONAL NL 69
  8. TFL LEDERTECHNIK DE 60
  9. MINKPAPIR DK 53
  10. EIKON TECHNOLOGIES HOLDING LU 51