- All sections
- C - Chemistrymetallurgy
- C14C - Treating skins, hides or leather with chemicals, enzymes or microorganisms, e.g. tanning, impregnating or finishingapparatus thereforcompositions for tanning
- C14C 3/20 - Chemical tanning by organic agents using polycondensation products or precursors thereof sulfonated
Patent holdings for IPC class C14C 3/20
Total number of patents in this class: 26
10-year publication summary
|
3
|
2
|
2
|
1
|
0
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0
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2
|
4
|
1
|
1
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1119 |
6 |
| TFL Ledertechnik GmbH | 104 |
5 |
| BASF SE | 20432 |
4 |
| Stahl International B.V. | 283 |
4 |
| Exploitatiemaatschappij Smit-Vecht B.V. | 3 |
2 |
| Osmo S.r.l. | 10 |
1 |
| Shaanxi University of Science & Technology | 60 |
1 |
| Midori Auto Leather Co., Ltd. | 8 |
1 |
| Toyota Jidosha Kabushiki Katsha | 4 |
1 |
| Bi-qem Specialties S.p.A. | 1 |
1 |
| Other owners | 0 |