CPC Subgroup
C14C 3/18 using polycondensation products or precursors thereof
Full Title
Tanning; Compositions for tanning > Chemical tanning > by organic agents > using polycondensation products or precursors thereof
1 direct subcode
Child Classifications
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- C14C 3/20 sulfonated
Top Applicants
Top 10 applicants by patent filingsfor class C14, 2013–2023, worldwide · Source: EPO PATSTAT
- SHAANXI UNIVERSITY OF SCIENCE AND TECHNOLOGY 183
- SICHUAN UNIVERSITY 135
- XINGYE LEATHER TECHNOLOGY COMPANY 93
- AGFA-GEVAERT BE 80
- MODERN MEADOW US 78
- XEROS GB 72
- STAHL INTERNATIONAL NL 69
- TFL LEDERTECHNIK DE 60
- MINKPAPIR DK 53
- EIKON TECHNOLOGIES HOLDING LU 51