Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells
US-11560351-B2 · Jan 24, 2023 · US
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Subject matter not provided for in other groups of this subclass
Subject matter not provided for in other groups of this subclass · 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 | C07G99/00 |
| Official title | Subject matter not provided for in other groups of this subclass |
| Display label | Subject matter not provided for in other groups of this subclass |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 4 |
| 2021 | 2 |
| 2022 | 2 |
| 2023 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
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Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells
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Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells
US-2019315674-A1 · Oct 17, 2019 · US
Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells
US-10421707-B2 · Sep 24, 2019 · US
Carbonized material, device for removing ozone, and method for removing ozone
US-2018369751-A1 · Dec 27, 2018 · US
Control of phytopathogenic microorganisms with Pseudomonas sp. and substances and compositions derived therefrom
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Methods and compositions incorporating alkyl polyglycoside surfactant for use in oil and/or gas wells
US-2017275518-A1 · Sep 28, 2017 · US
Method for preparing a sulfurized alkaline earth metal dodecylphenate
US-9617496-B2 · Apr 11, 2017 · US
Method for preparing a sulfurized alkaline earth metal dodecylphenate
US-2017015925-A1 · Jan 19, 2017 · US
Solvent extraction for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition
US-9328309-B2 · May 3, 2016 · US
Post-treated sulfurized salt of an alkyl-substituted hydroxyaromatic composition
US-9249091-B2 · Feb 2, 2016 · US
Method for Preparing a Sulfurized Alkaline Earth Metal Dodecylphenate
US-2015045269-A1 · Feb 12, 2015 · US
Control of phytopathogenic microorganisms with pseudomonas sp. and substances and compositions derived therefrom
US-2015030577-A1 · Jan 29, 2015 · US