- All sections
- C - Chemistrymetallurgy
- C08G - Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C08G 69/40 - Polyamides containing oxygen in the form of ether groups
Patent holdings for IPC class C08G 69/40
Total number of patents in this class: 521
10-year publication summary
|
44
|
51
|
51
|
37
|
40
|
23
|
41
|
39
|
27
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Arkema France | 4168 |
80 |
| Bridgestone Corporation | 7225 |
18 |
| Mitsubishi Gas Chemical Company, Inc. | 3486 |
14 |
| Evonik Operations GmbH | 4174 |
14 |
| Kolon Industries, Inc. | 1702 |
12 |
| Kaneka Corporation | 4614 |
11 |
| Nippon Kayaku Kabushiki Kaisha | 1451 |
10 |
| BASF SE | 21017 |
9 |
| California Institute of Technology | 3984 |
9 |
| Lubrizol Advanced Materials, Inc. | 950 |
9 |
| Ube Industries, Ltd. | 836 |
8 |
| The University of Tokyo | 4222 |
8 |
| Boston Scientific Scimed, Inc. | 10342 |
7 |
| AstraZeneca AB | 2886 |
6 |
| Acushnet Company | 2530 |
6 |
| Toray Industries, Inc. | 7000 |
6 |
| Intezyne Technologies, Inc. | 56 |
6 |
| INVISTA North America S.a.r.l. | 176 |
6 |
| Societe d'Exploitation de Produits pour Les Industries Chimiques SEPPIC | 413 |
6 |
| Sociedad Anonima Minera Catalano Aragonesa | 17 |
5 |
| Other owners | 271 |