- All sections
- D - Textiles; paper
- D21H - Pulp compositions; preparation thereof not covered by subclasses , ; impregnating or coating of paper; treatment of finished paper not covered by class or subclass ; paper not otherwise provided for
- D21H 21/24 - Surfactants
Patent holdings for IPC class D21H 21/24
Total number of patents in this class: 170
10-year publication summary
14
|
10
|
19
|
16
|
18
|
19
|
17
|
11
|
10
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
The Procter & Gamble Company | 22178 |
14 |
International Paper Company | 857 |
14 |
GPCP IP Holdings LLC | 1733 |
13 |
First Quality Tissue, LLC | 143 |
12 |
Kimberly-clark Worldwide, Inc. | 5854 |
10 |
Ecolab USA Inc. | 5190 |
9 |
Kemira Oyj | 1167 |
9 |
Stora Enso Oyj | 1504 |
9 |
Solenis Technologies, L.P. | 306 |
5 |
Buckman Laboratories International, Inc. | 244 |
4 |
Structured I, LLC | 54 |
4 |
Tetra Laval Holdings & Finance S.A. | 2007 |
4 |
Daio Paper Corporation | 1407 |
3 |
Kemira Chemie GesmbH | 4 |
3 |
Nalco Company | 620 |
3 |
Neozyme International, Inc. | 29 |
3 |
Essity Hygiene and Health Aktiebolag | 1990 |
3 |
Chemstone, Inc. | 21 |
2 |
Lenzing Aktiengesellschaft | 529 |
2 |
Miyoshi Oil & Fat Co., Ltd. | 82 |
2 |
Other owners | 42 |