- 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: 459
10-year publication summary
|
35
|
31
|
27
|
35
|
38
|
43
|
29
|
36
|
31
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Henkel AG & Co. KGaA | 10770 |
53 |
| The Procter & Gamble Company | 21855 |
51 |
| FUJIFILM Corporation | 30514 |
15 |
| Ecolab USA Inc. | 5796 |
15 |
| Conopco, Inc. | 5086 |
14 |
| BASF SE | 21303 |
14 |
| FUJIFILM Electronic Materials U.S.A., Inc. | 343 |
12 |
| Entegris, Inc. | 2008 |
9 |
| Kao Corporation | 5076 |
8 |
| Dow Global Technologies LLC | 10944 |
8 |
| Clariant International Ltd. | 893 |
8 |
| Unilever IP Holdings B.V. | 2763 |
8 |
| Unilever Global IP Limited | 2185 |
8 |
| Unilever PLC | 2999 |
7 |
| Unilever N.V. | 2913 |
7 |
| DONGWOO FINE-CHEM Co., Ltd. | 1429 |
7 |
| Mitsubishi Gas Chemical Company, Inc. | 3622 |
6 |
| Symrise AG | 1849 |
6 |
| Tokyo Ohka Kogyo Co., Ltd. | 1562 |
6 |
| JSR Corporation | 2554 |
5 |
| Other owners | 192 |