- All sections
- C - Chemistrymetallurgy
- C07C - Acyclic or carbocyclic compounds
- C07C 253/22 - Preparation of carboxylic acid nitriles by reaction of ammonia with carboxylic acids with replacement of carboxyl groups by cyano groups
Patent holdings for IPC class C07C 253/22
Total number of patents in this class: 62
10-year publication summary
|
1
|
3
|
7
|
2
|
8
|
3
|
3
|
4
|
1
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Gas Chemical Company, Inc. | 3640 |
12 |
| Arkema France | 4254 |
11 |
| Mitsui Chemicals, Inc. | 3261 |
4 |
| Asahi Kasei Kabushiki Kaisha | 2854 |
4 |
| BioAmber S.A.S. | 20 |
4 |
| Alliance for Energy Innovation, LLC | 581 |
4 |
| Alliance for Sustainable Energy, LLC | 303 |
3 |
| Safion Renewables Inc. | 18 |
3 |
| Ube Corporation | 457 |
2 |
| Hyundai Motor Company | 24898 |
1 |
| Nitto Denko Corporation | 8580 |
1 |
| API Corporation | 188 |
1 |
| ARAKAWA Chemical Industries, Ltd. | 156 |
1 |
| Ascend Performance Materials Operations LLC | 267 |
1 |
| Cecalc | 3 |
1 |
| Eastman Chemical Company | 2101 |
1 |
| Hangzhou Normal University | 71 |
1 |
| Rhodia Operations | 1487 |
1 |
| Anshan Hifichem Co., Ltd. | 6 |
1 |
| POSTECH Research and Business Development Foundation | 1094 |
1 |
| Other owners | 4 |