- All sections
- C - Chemistrymetallurgy
- C01C - Ammoniacyanogencompounds thereof
- C01C 1/28 - Methods of preparing ammonium salts in general
Patent holdings for IPC class C01C 1/28
Total number of patents in this class: 39
10-year publication summary
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2
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3
|
1
|
2
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2
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3
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4
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7
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2
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0
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The United States of America, as represented by the Secretary of Agriculture | 1132 |
3 |
| Halliburton Energy Services, Inc. | 21098 |
2 |
| Nijhuis Water Technology B.V. | 13 |
2 |
| Smart Salt Inc | 7 |
2 |
| California Safe Soil, LLC | 26 |
2 |
| H2-sphere GmbH | 3 |
2 |
| Samsung Electronics Co., Ltd. | 151485 |
1 |
| Honeywell International Inc. | 13561 |
1 |
| Centre National de La Recherche Scientifique | 10805 |
1 |
| Ajinomoto Co., Inc. | 2300 |
1 |
| National Institute of Advanced Industrial Science and Technology | 3795 |
1 |
| AMI Agrolinz Melamine International GmbH | 8 |
1 |
| Convex B.V. | 6 |
1 |
| Evoqua Water Technologies LLC | 926 |
1 |
| JGC Catalysts and Chemicals Ltd. | 255 |
1 |
| SABIC Global Technologies B.V. | 4451 |
1 |
| ThioSolv, LLC | 24 |
1 |
| Tokyo Institute of Technology | 1346 |
1 |
| Toyo Engineering Corporation | 148 |
1 |
| West Virginia University Board of Governors on Behalf of West Virginia University | 164 |
1 |
| Other owners | 12 |