- All sections
- C - Chemistry; metallurgy
- C14C - Treating skins, hides or leather with chemicals, enzymes or microorganisms, e.g. tanning, impregnating or finishing; apparatus therefor; compositions 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: 27
10-year publication summary
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1
|
3
|
2
|
2
|
1
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0
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0
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2
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4
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0
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| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1104 |
6 |
| TFL Ledertechnik GmbH | 107 |
6 |
| BASF SE | 19740 |
4 |
| Stahl International B.V. | 267 |
3 |
| Exploitatiemaatschappij Smit-Vecht B.V. | 3 |
2 |
| Toyota Motor Corporation | 28582 |
1 |
| BASF AG | 1258 |
1 |
| Osmo S.r.l. | 10 |
1 |
| Shaanxi University of Science & Technology | 60 |
1 |
| Midori Auto Leather Co., Ltd. | 7 |
1 |
| Bi-qem Specialties S.p.A. | 1 |
1 |
| Other owners | 0 |