- 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: 87
10-year publication summary
|
8
|
8
|
10
|
9
|
7
|
3
|
5
|
2
|
2
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bristol-myers Squibb Company | 4892 |
7 |
| Xwpharma Ltd. | 56 |
5 |
| Eberhard Karls Universitaet Tuebingen Medizinische Fakultaet | 141 |
4 |
| Sunshine Lake Pharma Co., Ltd. | 588 |
4 |
| H. Lundbeck A/S | 1229 |
4 |
| Dow Global Technologies LLC | 10354 |
3 |
| Ajinomoto Co., Inc. | 2298 |
3 |
| Biogen MA Inc. | 892 |
3 |
| NanoSynthons LLC | 7 |
3 |
| Boehringer Ingelheim International GmbH | 4704 |
2 |
| Bayer Schering Pharma AG | 400 |
2 |
| ALFASIGMA S.p.A. | 495 |
2 |
| Dainippon Sumitomo Pharma Co., Ltd. | 196 |
2 |
| Sigma-Tau Industrie Farmaceutiche Riunite S.p.A. | 83 |
2 |
| Vectivbio Comet AG | 6 |
2 |
| Glaxo Group Limited | 4132 |
1 |
| Novartis AG | 10904 |
1 |
| F. Hoffmann-La Roche AG | 7926 |
1 |
| Merck Sharp & Dohme Corp. | 2201 |
1 |
| Janssen Pharmaceutica N.V. | 3423 |
1 |
| Other owners | 34 |