- All sections
- C - Chemistry; metallurgy
- C08B - Polysaccharides; derivatives thereof
- C08B 11/20 - Post-etherification treatments, including purification
Patent holdings for IPC class C08B 11/20
Total number of patents in this class: 180
10-year publication summary
|
23
|
23
|
9
|
11
|
8
|
12
|
12
|
8
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dow Global Technologies LLC | 10147 |
33 |
| Shin-Etsu Chemical Co., Ltd. | 5132 |
24 |
| Nutrition & Biosciences USA 1, LLC | 186 |
13 |
| DDP Specialty Electronic Materials US, LLC | 442 |
12 |
| Kao Corporation | 4843 |
7 |
| Dow Global Technologies Inc. | 1055 |
5 |
| FzioMed, Inc. | 33 |
4 |
| Gelesis LLC | 32 |
4 |
| Lotte Fine Chemical Co., Ltd. | 100 |
4 |
| SE Tylose GmbH & Co. KG | 32 |
4 |
| UPM-Kymmene Corporation | 868 |
4 |
| Dow Silicones Corporation | 1664 |
4 |
| Union Carbide Corporation | 279 |
3 |
| Teknologian Tutkimuskeskus VTT Oy | 471 |
3 |
| Virginia Tech Intellectual Properties, Inc. | 772 |
3 |
| Nouryon Chemicals International B.V. | 508 |
3 |
| BASF SE | 19740 |
2 |
| Union Carbide Chemicals & Plastics Technology LLC | 103 |
2 |
| Asahi Kasei Fibers Corporation | 112 |
2 |
| ConvaTec Technologies Inc. | 335 |
2 |
| Other owners | 42 |