- 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 3/28 - Multi-step processes
Patent holdings for IPC class C14C 3/28
Total number of patents in this class: 83
10-year publication summary
|
5
|
5
|
3
|
6
|
4
|
4
|
9
|
8
|
6
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1110 |
7 |
| TFL Ledertechnik GmbH | 100 |
7 |
| Xeros Limited | 132 |
7 |
| Stahl International B.V. | 293 |
4 |
| DB Patents Ltd. | 6 |
4 |
| Clariant Finance (BVI) Limited | 383 |
3 |
| Quintessence Marine Inc. | 12 |
3 |
| BASF SE | 21071 |
2 |
| Rohm and Haas Company | 2927 |
2 |
| Sichuan University | 577 |
2 |
| Santori Pellami S.p.A. | 6 |
2 |
| Midori Auto Leather Co., Ltd. | 9 |
2 |
| Beken Italia S.r.l. | 3 |
2 |
| Centre National de La Recherche Scientifique | 10632 |
1 |
| Buckman Laboratories International, Inc. | 241 |
1 |
| Council of Scientific and Industrial Research | 598 |
1 |
| ENRICO MANDELLI S.p.A. | 9 |
1 |
| Fujian Agriculture and Forestry University | 24 |
1 |
| Huntsman Advanced Materials (Switzerland) GmbH | 182 |
1 |
| Korea Institute of Footwear & Leather Technology | 6 |
1 |
| Other owners | 29 |