Methods of using ionic liquids as paraffin inhibitors, pour point depressants and cold flow improvers
US-12180428-B2 · Dec 31, 2024 · US
containing nitrogen and sulfur
containing nitrogen and sulfur · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C09K15/26 |
| Official title | containing nitrogen and sulfur |
| Display label | containing nitrogen and sulfur |
| Total patents | 38 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 3 |
| 2017 | 7 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Oil and gas field corrosion inhibitor compositions
US-12043794-B2 · Jul 23, 2024 · US
Efficient phosphorous stabilizers based on diphenylamine and heterocyclic diphenylamine derivatives
US-11634560-B2 · Apr 25, 2023 · US
Methods of using ionic liquids as corrosion inhibitors
US-11485915-B2 · Nov 1, 2022 · US
Methods of Using Ionic Liquids as Demulsifiers
US-2022169929-A1 · Jun 2, 2022 · US
Composition containing a urease inhibitor
US-11306036-B2 · Apr 19, 2022 · US
Methods of using ionic liquids as corrosion inhibitors
US-2022098494-A1 · Mar 31, 2022 · US
Ionic liquids and methods of using same
US-2022056345-A1 · Feb 24, 2022 · US
Methods of using ionic liquids as demulsifiers
US-11254881-B2 · Feb 22, 2022 · US
Oil and gas field corrosion inhibitor compositions
US-2021253938-A1 · Aug 19, 2021 · US
Compositions suitable for use in making fertilizers, methods for making such compositions, and method for making fertilizers using the same
US-11084763-B2 · Aug 10, 2021 · US
Efficient phosphorous stabilisers based on diphenylamine and heterocyclic diphenylamine derivatives
US-2021130582-A1 · May 6, 2021 · US
Methods of using ionic liquids as paraffin inhibitors, pour point depressants and cold flow improvers
US-2020017790-A1 · Jan 16, 2020 · US
Methods of using ionic liquids as demulsifiers
US-2020017776-A1 · Jan 16, 2020 · US
Methods of using ionic liquids as corrosion inhibitors
US-2020017766-A1 · Jan 16, 2020 · US
Composition containing N-butyl thiophosphoric triamide adducts and reaction products
US-10479737-B2 · Nov 19, 2019 · US
Composition containg a urease inhibitor
US-2019300452-A1 · Oct 3, 2019 · US
Process for preparing a polymerization inhibitor solution
US-10421905-B2 · Sep 24, 2019 · US
Compositions with improved urease-inhibiting effect comprising (thio)phosphoric acid triamide and further compounds
US-2019084898-A1 · Mar 21, 2019 · US
Compositions with improved urease-inhibiting effect comprising (thio)phosphoric acid triamide and further compounds
US-10150712-B2 · Dec 11, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K15/26?
- CPC C09K15/26 is the Cooperative Patent Classification code for “containing nitrogen and sulfur.”
- How many patents are filed under CPC C09K15/26 (containing nitrogen and sulfur)?
- Our database includes 38 publications tagged with this CPC code.
- Is patent activity under CPC C09K15/26 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2024 (latest complete years).