Optimized process for preparing methacrylic acid
US-10125077-B2 · Nov 13, 2018 · US
Esters of carboxylic or carbonic acids
Esters of carboxylic or carbonic acids · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B01J31/0209 |
| Official title | {Esters of carboxylic or carbonic acids} |
| Display label | Esters of carboxylic or carbonic acids |
| Total patents | 181 |
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 | 16 |
| 2016 | 18 |
| 2017 | 14 |
| 2018 | 18 |
| 2019 | 14 |
| 2020 | 22 |
| 2021 | 27 |
| 2022 | 23 |
| 2023 | 9 |
| 2024 | 11 |
| 2025 | 6 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Catalyst containing gamma-valerolactone and/or the hydrolysis products thereof, and use thereof in a hydroprocessing and/or hydrocracking method
US-2018290131-A1 · Oct 11, 2018 · US
N,N,N'-Trimethyl-Bis-(Aminoethyl) Ether and its Derivatives as Catalysts for Polyurethanes
US-2018214857-A1 · Aug 2, 2018 · US
Method of preparing metal oxide-silica composite aerogel and metal oxide-silica composite aerogel prepared thereby
US-2018208474-A1 · Jul 26, 2018 · US
Method of preparing metal oxide silica composite aerogel and metal oxide silica composite aerogel prepared thereby
US-2018193825-A1 · Jul 12, 2018 · US
Catalyst composition for hydrogenation and method for hydrogenation using the same
US-10016749-B2 · Jul 10, 2018 · US
Method for producing aerogel blanket and aerogel blanket produced thereby
US-2018134566-A1 · May 17, 2018 · US
Alkylation processes using liquid lewis acid catalysts
US-2018127335-A1 · May 10, 2018 · US
Nano-to-nano Fe/ppm Pd catalysis of cross-coupling reactions in water
US-9956551-B2 · May 1, 2018 · US
A polar additive-containing hydroprocessing catalyst and method of making and using thereof
US-2018057756-A1 · Mar 1, 2018 · US
N,N,N′-trimethyl-bis-(aminoethyl) ether and its derivatives as catalysts for polyurethanes
US-9878317-B2 · Jan 30, 2018 · US
Hydroformylation catalyst
US-9861970-B2 · Jan 9, 2018 · US
Synthetic route to 2′-deoxy-2′,2′-difluorotetrahydrouridines
US-9834576-B2 · Dec 5, 2017 · US
NANO-TO-NANO FE/PPM Pd CATALYSIS OF CROSS-COUPLING REACTIONS IN WATER
US-2017341069-A1 · Nov 30, 2017 · US
Hydroprocessing catalyst, preparation method thereof and use of same
US-9821302-B2 · Nov 21, 2017 · US
Optimized process for preparing methacrylic acid
US-2017305830-A1 · Oct 26, 2017 · US
Magnesium dichloride-ethanol adducts and catalyst components obtained therefrom
US-2017283529-A1 · Oct 5, 2017 · US
Method for producing adamantane
US-9714202-B2 · Jul 25, 2017 · US
Method for generating a purified catalyst
US-9687831-B2 · Jun 27, 2017 · US
Method for producing methacrylated benzophenones
US-9656941-B2 · May 23, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J31/0209?
- CPC B01J31/0209 is the Cooperative Patent Classification code for “Esters of carboxylic or carbonic acids.”
- How many patents are filed under CPC B01J31/0209 (Esters of carboxylic or carbonic acids)?
- Our database includes 181 publications tagged with this CPC code.
- Is patent activity under CPC B01J31/0209 growing?
- Publication counts under this code: 11 in 2024 vs 6 in 2025 (latest complete years).