- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 39/21 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing only six-membered aromatic rings as cyclic part, with unsaturation outside the rings with at least one hydroxy group on a non-condensed ring
Patent holdings for IPC class C07C 39/21
Total number of patents in this class: 135
10-year publication summary
|
4
|
10
|
10
|
11
|
6
|
6
|
7
|
2
|
9
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Versitech Limited | 369 |
6 |
| Colgate-Palmolive Company | 5800 |
5 |
| Bagi Research Limited | 15 |
4 |
| Uha Mikakuto Co., Ltd. | 39 |
4 |
| Kynan Duke IP, LLC | 8 |
4 |
| Shin-Etsu Chemical Co., Ltd. | 5663 |
3 |
| Hong Kong Baptist University | 113 |
3 |
| Morinaga & Co., Ltd. | 111 |
3 |
| BASF SE | 20915 |
2 |
| The Trustees of the University of Pennsylvania | 4329 |
2 |
| JSR Corporation | 2527 |
2 |
| Consejo Superior de Investigaciones Cientificas (csic) | 1372 |
2 |
| ELC Management LLC | 1070 |
2 |
| Laboratorios Senosiain S.A. de C.V. | 19 |
2 |
| Mcmaster University | 801 |
2 |
| Mitsubishi Gas Chemical Company, Inc. | 3466 |
2 |
| Purapharm International (H.K.) Limited | 8 |
2 |
| Teva Pharmaceuticals International GmbH | 319 |
2 |
| Resolvex Pharmaceuticals Inc. | 5 |
2 |
| Centre National de La Recherche Scientifique (cnrs) | 3106 |
2 |
| Other owners | 79 |