- All sections
- C - Chemistrymetallurgy
- C08L - Compositions of macromolecular compounds
- C08L 77/04 - Polyamides derived from alpha-amino carboxylic acids
Patent holdings for IPC class C08L 77/04
Total number of patents in this class: 246
10-year publication summary
|
13
|
13
|
19
|
20
|
12
|
11
|
25
|
14
|
18
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| E. I. du Pont de Nemours and Company | 3975 |
9 |
| Covestro (Netherlands) B.V. | 279 |
9 |
| BASF SE | 21039 |
7 |
| Arkema France | 4170 |
6 |
| Societe d'Exploitation de Produits pour Les Industries Chimiques SEPPIC | 416 |
5 |
| Peridot Print LLC | 1290 |
5 |
| CJ Cheiljedang Corporation | 3457 |
4 |
| Institut National de La Sante et de La Recherche Medicale (inserm) | 2915 |
4 |
| Protip Medical | 19 |
4 |
| Universite de Strasbourg | 685 |
4 |
| The University of Tokyo | 4224 |
4 |
| Massachusetts Institute of Technology | 10117 |
3 |
| Japan Science and Technology Agency | 1297 |
3 |
| Ems-patent AG | 173 |
3 |
| Intezyne Technologies, Inc. | 56 |
3 |
| Mitsubishi Gas Chemical Company, Inc. | 3485 |
3 |
| The University of Akron | 649 |
3 |
| LG Chem, Ltd. | 17680 |
2 |
| The Regents of the University of California | 20137 |
2 |
| Evonik Degussa GmbH | 1486 |
2 |
| Other owners | 161 |