Composition and methods for improved fuel production
US-9222032-B2 · Dec 29, 2015 · US
by esterification of fatty acids with alcohols (C11C3/02 takes precedence)
by esterification of fatty acids with alcohols (C11C3/02 takes precedence) · 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 | C11C3/003 |
| Official title | {by esterification of fatty acids with alcohols (C11C3/02 takes precedence)} |
| Display label | by esterification of fatty acids with alcohols (C11C3/02 takes precedence) |
| Total patents | 423 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 61 |
| 2016 | 58 |
| 2017 | 39 |
| 2018 | 46 |
| 2019 | 37 |
| 2020 | 28 |
| 2021 | 34 |
| 2022 | 36 |
| 2023 | 30 |
| 2024 | 25 |
| 2025 | 23 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Lesquerella seed products and method and device for producing same
US-9220287-B2 · Dec 29, 2015 · US
Methods of refining natural oils, and methods of producing fuel compositions
US-9222056-B2 · Dec 29, 2015 · US
Polyol synthesis from fatty acids and oils
US-9216940-B2 · Dec 22, 2015 · US
Methods of producing lipids
US-2015353863-A1 · Dec 10, 2015 · US
Process for the Production of Bio-Naphtha from Complex Mixtures of Natural Occurring Fats & Oils
US-2015353864-A1 · Dec 10, 2015 · US
Omega 7 rich compositions and methods of isolating omega 7 fatty acids
US-9200236-B2 · Dec 1, 2015 · US
Low-Color Ester Compositions and Methods of Making and Using the Same
US-2015336873-A1 · Nov 26, 2015 · US
Ecofriendly Lubricating Additives for Water-Based Wellbore Drilling Fluids
US-2015322325-A1 · Nov 12, 2015 · US
Method and apparatus of extracting lipids and preparing fatty acid esters from microalgae
US-2015322373-A1 · Nov 12, 2015 · US
Process for preparing biodegradable lubricant base oils
US-9174919-B2 · Nov 3, 2015 · US
Method for producing biodiesel fuel and biodiesel fuel composition
US-9168508-B2 · Oct 27, 2015 · US
Methods of Refining and Producing Dibasic Esters and Acids from Natural Oil Feedstocks
US-2015299613-A1 · Oct 22, 2015 · US
Waxy Oxidation Products Of Rice Bran
US-2015284661-A1 · Oct 8, 2015 · US
Process for preparing concentrated polyunsaturated fatty acid oil
US-9150817-B2 · Oct 6, 2015 · US
Enhanced production of fatty acid derivatives
US-2015275188-A1 · Oct 1, 2015 · US
Systems and Methods of Refining Natural Oil Feedstocks and Derivatives Thereof
US-2015266802-A1 · Sep 24, 2015 · US
Processes for producing hydrocarbon products
US-2015267216-A1 · Sep 24, 2015 · US
Processes of preparing estolide base oils and lubricants that include transesterification
US-9139792-B2 · Sep 22, 2015 · US
Method and device for manufacturing biodiesel from sewage sludge
US-2015259614-A1 · Sep 17, 2015 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C11C3/003?
- CPC C11C3/003 is the Cooperative Patent Classification code for “by esterification of fatty acids with alcohols (C11C3/02 takes precedence).”
- How many patents are filed under CPC C11C3/003 (by esterification of fatty acids with alcohols (C11C3/02 takes precedence))?
- Our database includes 423 publications tagged with this CPC code.
- Is patent activity under CPC C11C3/003 growing?
- Publication counts under this code: 25 in 2024 vs 23 in 2025 (latest complete years).