- All sections
- C - Chemistrymetallurgy
- C11D - Detergent compositionsuse of single substances as detergentssoap or soap-makingresin soapsrecovery of glycerol
- C11D 3/28 - Heterocyclic compounds containing nitrogen in the ring
Patent holdings for IPC class C11D 3/28
Total number of patents in this class: 418
10-year publication summary
|
30
|
35
|
31
|
27
|
35
|
37
|
39
|
26
|
35
|
20
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Henkel AG & Co. KGaA | 10572 |
54 |
| The Procter & Gamble Company | 22017 |
41 |
| Conopco, Inc. | 5023 |
14 |
| FUJIFILM Corporation | 29367 |
14 |
| Ecolab USA Inc. | 5480 |
14 |
| BASF SE | 20933 |
11 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 330 |
10 |
| Entegris, Inc. | 1868 |
9 |
| Unilever PLC | 3195 |
8 |
| Unilever N.V. | 3103 |
8 |
| Unilever IP Holdings B.V. | 3100 |
8 |
| Unilever Global IP Limited | 2007 |
8 |
| Dow Global Technologies LLC | 10363 |
7 |
| Kao Corporation | 4964 |
6 |
| Clariant International Ltd. | 937 |
6 |
| DONGWOO FINE-CHEM Co., Ltd. | 1333 |
6 |
| Symrise AG | 1722 |
6 |
| American Sterilizer Company | 660 |
5 |
| Tokyo Ohka Kogyo Co., Ltd. | 1542 |
5 |
| Versum Materials US, LLC | 641 |
5 |
| Other owners | 173 |