Preparation of diesters of (meth)acrylic acid from epoxides
US-2021179531-A1 · Jun 17, 2021 · US
with an oxirane ring
with an oxirane ring · 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 | C07C67/26 |
| Official title | with an oxirane ring |
| Display label | with an oxirane ring |
| Total patents | 75 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 20 |
| 2017 | 12 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 1 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Automated contactless access device location system and method
US-11015014-B2 · May 25, 2021 · US
Methods and compositions for preparing triglycerides containing fatty acid vicinal diester functionality
US-10731105-B2 · Aug 4, 2020 · US
Polycarboxylic acid compounds for the treatment of fibrious amino acid based substrates, especially hair
US-10617617-B1 · Apr 14, 2020 · US
Cured film formation composition, orientation material, and retardation material
US-10570248-B2 · Feb 25, 2020 · US
Process for preparing bis(2-hydroxyethyl) terephthalate
US-2019382331-A1 · Dec 19, 2019 · US
Glycerol (meth)acrylate carboxylic ester having a long shelf life
US-2019352251-A1 · Nov 21, 2019 · US
Addition-fragmentation agents
US-10370322-B2 · Aug 6, 2019 · US
Automated contactless access device location system and method
US-2019218332-A1 · Jul 18, 2019 · US
Process for preparing bis(2-hydroxyethyl) terephthalate
US-10336680-B2 · Jul 2, 2019 · US
Automated contactless access device location system and method
US-10269014-B2 · Apr 23, 2019 · US
Process for preparing bis(2-hydroxyethyl) terephthalate
US-2019002388-A1 · Jan 3, 2019 · US
Method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and method for producing glycidyl (meth)acrylate
US-10087159-B2 · Oct 2, 2018 · US
Methods and Compositions for Preparing Triglycerides Containing Fatty Acid Vicinal Diester Functionality
US-2018216028-A1 · Aug 2, 2018 · US
Hydroxyalkyl acrylate and method for producing same
US-10023522-B2 · Jul 17, 2018 · US
Cured film formation composition, orientation material, and retardation material
US-2018112032-A1 · Apr 26, 2018 · US
Method for preparing hydroxyethyl (meth) acrylate
US-9845281-B2 · Dec 19, 2017 · US
Fatty amines, amidoamines, and their derivatives from natural oil metathesis
US-9828570-B2 · Nov 28, 2017 · US
Quaternized fatty amines, amidoamines and their derivatives from natural oil
US-9815780-B2 · Nov 14, 2017 · US
Method for producing 3-chloro-2-hydroxypropyl (meth)acrylate and method for producing glycidyl (meth)acrylate
US-2017305870-A1 · Oct 26, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C67/26?
- CPC C07C67/26 is the Cooperative Patent Classification code for “with an oxirane ring.”
- How many patents are filed under CPC C07C67/26 (with an oxirane ring)?
- Our database includes 75 publications tagged with this CPC code.
- Is patent activity under CPC C07C67/26 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).