- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 207/28 - 2-Pyrrolidone-5- carboxylic acidsFunctional derivatives thereof, e.g. esters, nitriles
Patent holdings for IPC class C07D 207/28
Total number of patents in this class: 82
10-year publication summary
|
7
|
9
|
7
|
6
|
3
|
5
|
3
|
2
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bristol-myers Squibb Company | 4812 |
7 |
| Xwpharma Ltd. | 62 |
5 |
| Sunshine Lake Pharma Co., Ltd. | 618 |
4 |
| H. Lundbeck A/S | 1242 |
4 |
| Dow Global Technologies LLC | 10770 |
3 |
| Ajinomoto Co., Inc. | 2277 |
3 |
| Biogen MA Inc. | 926 |
3 |
| NanoSynthons LLC | 7 |
3 |
| LICIT Solutions GmbH | 22 |
3 |
| Boehringer Ingelheim International GmbH | 4529 |
2 |
| Bayer Schering Pharma AG | 348 |
2 |
| ALFASIGMA S.p.A. | 488 |
2 |
| Dainippon Sumitomo Pharma Co., Ltd. | 174 |
2 |
| Sigma-Tau Industrie Farmaceutiche Riunite S.p.A. | 65 |
2 |
| Vectivbio Comet AG | 6 |
2 |
| Glaxo Group Limited | 4356 |
1 |
| Novartis AG | 10346 |
1 |
| F. Hoffmann-La Roche AG | 7835 |
1 |
| Merck Sharp & Dohme Corp. | 2184 |
1 |
| Janssen Pharmaceutica N.V. | 3233 |
1 |
| Other owners | 30 |