- All sections
- C - Chemistrymetallurgy
- C07D - Heterocyclic compounds
- C07D 311/94 - Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems condensed with rings other than six-membered or with ring systems containing such rings
Patent holdings for IPC class C07D 311/94
Total number of patents in this class: 228
10-year publication summary
|
9
|
9
|
17
|
22
|
9
|
12
|
13
|
8
|
21
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Transitions Optical, Inc. | 256 |
23 |
| Tokuyama Corporation | 1383 |
18 |
| inkbox ink Inc. | 48 |
7 |
| Transitions Optical Limited | 160 |
7 |
| Hoya Lens Thailand Ltd. | 546 |
6 |
| Rodenstock GmbH | 383 |
6 |
| BASF SE | 20904 |
5 |
| E. I. du Pont de Nemours and Company | 4095 |
5 |
| Fosun Orinove Pharmatech, Inc. | 13 |
5 |
| The Board of Trustees of the University of Illinois | 2689 |
4 |
| Apotex Pharmachem Inc. | 27 |
4 |
| Soochow University | 1735 |
4 |
| University of Florida Research Foundation, Inc. | 4007 |
3 |
| Domain Therapeutics | 50 |
3 |
| Gilead Sciences, Inc. | 2032 |
3 |
| R-tech Ueno, Ltd. | 40 |
3 |
| Technische Universitat Munchen | 686 |
3 |
| The University of Sydney | 596 |
3 |
| Ache Laboratorios Farmaceuticos S.A. | 21 |
2 |
| BIC Inc. | 191 |
2 |
| Other owners | 112 |