- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 23/22 - Amides or hydrazides
Patent holdings for IPC class C09K 23/22
Total number of patents in this class: 21
10-year publication summary
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0
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1
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1
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0
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2
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2
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2
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3
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2
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4
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Schlumberger Technology Corporation | 10745 |
3 |
| Schlumberger Canada Limited | 7298 |
1 |
| Schlumberger Technology B.v. | 5163 |
1 |
| Asahi Kasei Finechem Co., Ltd. | 11 |
1 |
| BYK-Chemie GmbH | 443 |
1 |
| Cargill, Incorporated | 2892 |
1 |
| Ecolab USA Inc. | 5499 |
1 |
| Ingevity South Carolina, LLC | 244 |
1 |
| Jiangnan University | 1531 |
1 |
| Lubrizol Advanced Materials, Inc. | 952 |
1 |
| NOK Corporation | 2220 |
1 |
| OrganoClick AB | 73 |
1 |
| Services Petroliers Schlumberger | 5788 |
1 |
| Sphere Fluidics Limited | 69 |
1 |
| Toyo Ink SC Holdings Co., Ltd. | 464 |
1 |
| Toyocolor Co., Ltd. | 220 |
1 |
| Sulnox Group plc | 7 |
1 |
| Jiangsu Oji Biotech Co., Ltd. | 4 |
1 |
| Dorf Ketal Energy Services LLC | 17 |
1 |
| Other owners | 0 |