- All sections
- C - Chemistrymetallurgy
- C11D - Detergent compositionsuse of single substances as detergentssoap or soap-makingresin soapsrecovery of glycerol
- C11D 1/28 - Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
Patent holdings for IPC class C11D 1/28
Total number of patents in this class: 336
10-year publication summary
|
26
|
25
|
17
|
14
|
17
|
21
|
21
|
36
|
22
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stepan Company | 569 |
41 |
| Kao Corporation | 4959 |
39 |
| Lion Corporation | 741 |
38 |
| Conopco, Inc. | 4994 |
29 |
| BASF SE | 20892 |
24 |
| Henkel AG & Co. KGaA | 10525 |
18 |
| Unilever Global IP Limited | 1989 |
17 |
| Unilever IP Holdings B.V. | 3084 |
14 |
| The Procter & Gamble Company | 22043 |
10 |
| Unilever PLC | 3214 |
5 |
| Unilever N.V. | 3121 |
5 |
| Innospec Limited | 337 |
4 |
| KL-Kepong Oleomas Sdn. Bhd. | 29 |
4 |
| Hindustan Unilever Limited | 1194 |
3 |
| Lankem Ltd | 12 |
3 |
| Guangzhou Joyson Cleaning Products Co., Ltd. | 16 |
3 |
| Colgate-Palmolive Company | 5817 |
2 |
| Battelle Memorial Institute | 2476 |
2 |
| Advansix Resins & Chemicals LLC | 299 |
2 |
| Clariant International Ltd. | 940 |
2 |
| Other owners | 71 |