- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 221/20 - Spiro-condensed ring systems
Patent holdings for IPC class C07D 221/20
Total number of patents in this class: 361
10-year publication summary
|
18
|
22
|
22
|
32
|
22
|
32
|
36
|
22
|
17
|
26
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Syngenta Crop Protection AG | 6229 |
19 |
| VALO Health, Inc. | 176 |
15 |
| Amgen Inc. | 4161 |
10 |
| Merck Patent GmbH | 5758 |
9 |
| Merck Sharp & Dohme LLC | 3735 |
9 |
| Pfizer Inc. | 3403 |
8 |
| Bristol-myers Squibb Company | 4833 |
7 |
| Rottapharm Biotech S.r.l. | 43 |
7 |
| Arvinas Operations, Inc. | 242 |
7 |
| Astellas Pharma Inc. | 1053 |
6 |
| Syngenta Participations AG | 1745 |
5 |
| Constellation Pharmaceuticals, Inc. | 211 |
5 |
| Oryzon Genomics S.A. | 108 |
5 |
| Relay Therapeutics, Inc. | 71 |
5 |
| LG Chem, Ltd. | 17685 |
4 |
| Takeda Pharmaceutical Company Limited | 2719 |
4 |
| Forma Therapeutics, Inc. | 154 |
4 |
| Proyecto de Biomedicina Cima, S.L. | 52 |
4 |
| H. Lundbeck A/S | 1237 |
4 |
| Vertex Pharmaceuticals Incorporated | 1621 |
3 |
| Other owners | 221 |