Date palm residue drilling mud composition
US-2024301271-A1 · Sep 12, 2024 · US
Derivatives of other natural products, e.g. cellulose, starch, sugars
Derivatives of other natural products, e.g. cellulose, starch, sugars · 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 | C09K8/206 |
| Official title | {Derivatives of other natural products, e.g. cellulose, starch, sugars} |
| Display label | Derivatives of other natural products, e.g. cellulose, starch, sugars |
| Total patents | 93 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 12 |
| 2020 | 6 |
| 2021 | 13 |
| 2022 | 10 |
| 2023 | 6 |
| 2024 | 20 |
| 2025 | 14 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Methods of making and using a lubricant composition
US-2023383164-A1 · Nov 30, 2023 · US
Sustainable solid lubricant for drilling fluid
US-11795362-B1 · Oct 24, 2023 · US
Bionic and dual-phobic high-performance water-based drilling fluid
US-11787990-B2 · Oct 17, 2023 · US
Cationic formation stabilizers compatible with anionic friction reducing polymers
US-11767458-B2 · Sep 26, 2023 · US
Method of application of low salinity viscous fluid in drilling saline formations
US-2023265726-A1 · Aug 24, 2023 · US
Bionic and dual-phobic high-performance water-based drilling fluid
US-2023133053-A1 · May 4, 2023 · US
Environmentally-friendly lubricant for oil field drilling fluid applications
US-11472995-B2 · Oct 18, 2022 · US
Water-based drilling fluid compositions and methods for drilling subterranean wells
US-11441061-B2 · Sep 13, 2022 · US
Lubricant formulation for multiple water-based muds
US-2022267693-A1 · Aug 25, 2022 · US
Lubricant formulation for multiple water-based muds
US-11407956-B1 · Aug 9, 2022 · US
Spent jet-engine oil as drilling lubricant
US-2022213375-A1 · Jul 7, 2022 · US
Cationic Formation Stabilizers Compatible with Anionic Friction Reducing Polymers
US-2022154062-A1 · May 19, 2022 · US
Water-based drilling fluid compositions and methods for drilling subterranean wells
US-11286412-B2 · Mar 29, 2022 · US
Downhole fluids and methods of use thereof
US-2022081603-A1 · Mar 17, 2022 · US
Cationic formation stabilizers compatible with anionic friction reducing polymers
US-11274240-B2 · Mar 15, 2022 · US
Drilling fluid for enhancing stratum pressure bearing capacity and preparation method and method of using thereof
US-11225594-B1 · Jan 18, 2022 · US
Suspension Supporting Additive for Water-Based Drilling and Completions Fluids
US-2021395596-A1 · Dec 23, 2021 · US
Downhole fluids and methods of use thereof
US-11168241-B2 · Nov 9, 2021 · US
Nanometer plugging water-based drilling fluid and preparation method and use thereof
US-11162010-B2 · Nov 2, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C09K8/206?
- CPC C09K8/206 is the Cooperative Patent Classification code for “Derivatives of other natural products, e.g. cellulose, starch, sugars.”
- How many patents are filed under CPC C09K8/206 (Derivatives of other natural products, e.g. cellulose, starch, sugars)?
- Our database includes 93 publications tagged with this CPC code.
- Is patent activity under CPC C09K8/206 growing?
- Publication counts under this code: 20 in 2024 vs 14 in 2025 (latest complete years).