Surfactant compositions
US-10501677-B2 · Dec 10, 2019 · US
Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives
Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives · 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 | C09K8/20 |
| Official title | Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives |
| Display label | Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives |
| Total patents | 115 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 27 |
| 2019 | 27 |
| 2020 | 28 |
| 2021 | 12 |
| 2022 | 3 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US-10487254-B2 · Nov 26, 2019 · US
Development of anti-bit balling fluids
US-2019309210-A1 · Oct 10, 2019 · US
Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal
US-2019292431-A1 · Sep 26, 2019 · US
Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal
US-2019292432-A1 · Sep 26, 2019 · US
Strong plugging drilling fluid suitable for shale gas wells and preparation method thereof
US-10407608-B2 · Sep 10, 2019 · US
Spacer fluid compositions, methods, and systems for aqueous based drilling mud removal
US-10392550-B2 · Aug 27, 2019 · US
Development of anti-bit balling fluids
US-10377939-B2 · Aug 13, 2019 · US
Strong plugging drilling fluid suitable for shale gas wells and preparation method thereof
US-2019241791-A1 · Aug 8, 2019 · US
Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US-2019233708-A1 · Aug 1, 2019 · US
Enhanced filtration control packages, wellbore servicing fluids utilizing the same, and methods of maintaining the structure of a wellbore
US-2019233707-A1 · Aug 1, 2019 · US
ARC Perm-Squeeze RDF - A Permeable Plug Forming Rapidly Dehydrating Fluid
US-2019218870-A1 · Jul 18, 2019 · US
ARC Perm-Squeeze RDF - A Permeable Plug Forming Rapidly Dehydrating Fluid
US-2019218871-A1 · Jul 18, 2019 · US
Drilling fluid compositions with enhanced rheology and methods of using same
US-10351750-B2 · Jul 16, 2019 · US
Cement slurries, cured cements and methods of making and use thereof
US-2019203095-A1 · Jul 4, 2019 · US
Cement slurries, cured cements and methods of making and use thereof
US-2019203096-A1 · Jul 4, 2019 · US
ARC Perm-Squeeze RDF - A Permeable Plug Forming Rapidly Dehydrating Fluid
US-2019145200-A1 · May 16, 2019 · US
Cement slurries, cured cements and methods of making and use thereof
US-10287476-B2 · May 14, 2019 · US
Dispersant in cement formulations for oil and gas wells
US-2019092996-A1 · Mar 28, 2019 · US
Method for treating subterranean formations
US-10202535-B2 · Feb 12, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/20?
- CPC C09K8/20 is the Cooperative Patent Classification code for “Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives.”
- How many patents are filed under CPC C09K8/20 (Natural organic compounds or derivatives thereof, e.g. polysaccharides or lignin derivatives)?
- Our database includes 115 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/20 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).