Tri-cationic viscoelastic surfactant, preparation method and application thereof and clean fracturing fluid
US-2020283676-A1 · Sep 10, 2020 · US
having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton
having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton · 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 | C07C233/38 |
| Official title | having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton |
| Display label | having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton |
| Total patents | 106 |
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 | 14 |
| 2017 | 14 |
| 2018 | 2 |
| 2019 | 13 |
| 2020 | 11 |
| 2021 | 6 |
| 2022 | 9 |
| 2023 | 8 |
| 2024 | 11 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Immunomodulatory Compounds
US-2019365673-A1 · Dec 5, 2019 · US
Switchable antimicrobial and antifouling carboxybetaine-based hydrogels and elastomers with enhanced mechanical properties
US-10494538-B2 · Dec 3, 2019 · US
Lipids and lipid nanoparticle formulations for delivery of nucleic acids
US-2019359556-A1 · Nov 28, 2019 · US
Tert-AMINE CORE-BEARING ACYRLAMIDES AND ADHESIVE FORMULATIONS
US-2019292136-A1 · Sep 26, 2019 · US
Synthesis and evaluation of novel amido-amine cationic gemini surfactants containing flexible and rigid spacers
US-2019256458-A1 · Aug 22, 2019 · US
Preparation of N,N-(di)alkylaminoalkyl(meth)acrylamide or N,N-(di)alkylaminoalkyl (meth)acrylate and the quaternary ammonium salts thereof as flocculating aids and gelling agents
US-10343980-B2 · Jul 9, 2019 · US
Fatty amides and derivatives from natural oil metathesis
US-10322994-B2 · Jun 18, 2019 · US
Uv-absorbing vinylic monomers and uses thereof
US-2019179170-A1 · Jun 13, 2019 · US
Allenamide as an orthogonal handle for selective modification of cysteine in peptides and proteins
US-10294205-B2 · May 21, 2019 · US
Amine adducts, derivatives thereof, methods for making such adducts and derivatives, and methods for using such adducts and derivatives
US-10259987-B2 · Apr 16, 2019 · US
UV-absorbing vinylic monomers and uses thereof
US-10254567-B2 · Apr 9, 2019 · US
Lipids and lipid nanoparticle formulations for delivery of nucleic acids
US-10221127-B2 · Mar 5, 2019 · US
Amidopolyamines with enhanced gel-time for elevated temperature applications
US-10174154-B2 · Jan 8, 2019 · US
Betaines with special fatty acid chain distribution
US-9963425-B2 · May 8, 2018 · US
Compounds useful as immunomodulators
US-9872852-B2 · Jan 23, 2018 · US
Preparation of n,n-(di)alkylaminoalkyl(meth)acrylamide or n,n-(di)alkylaminoalkyl (meth)acrylate and the quaternary ammonium salts thereof as flocculating aids and gelling agents
US-2017369424-A1 · Dec 28, 2017 · US
Switchable antimicrobial and antifouling carboxybetaine-based hydrogels and elastomers with enhanced mechanical properties
US-2017362458-A1 · Dec 21, 2017 · US
Multi-functional acrylates
US-9834522-B2 · Dec 5, 2017 · US
Fatty amines, amidoamines, and their derivatives from natural oil metathesis
US-9828570-B2 · Nov 28, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07C233/38?
- CPC C07C233/38 is the Cooperative Patent Classification code for “having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton.”
- How many patents are filed under CPC C07C233/38 (having the carbon atom of the carboxamide group bound to a carbon atom of an acyclic unsaturated carbon skeleton)?
- Our database includes 106 publications tagged with this CPC code.
- Is patent activity under CPC C07C233/38 growing?
- Publication counts under this code: 11 in 2024 vs 2 in 2025 (latest complete years).