System and method for continuously producing diethyl methylphosphonite
US-12509478-B2 · Dec 30, 2025 · US
Organo-phosphines
Organo-phosphines · 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 | C07F9/50 |
| Official title | Organo-phosphines |
| Display label | Organo-phosphines |
| Total patents | 54 |
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 | 6 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 6 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 4 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electroactive materials
US-12232413-B2 · Feb 18, 2025 · US
Ligand Compound, Organochromium Compound and Catalyst System Comprising the Same
US-2023331753-A1 · Oct 19, 2023 · US
Electroactive Materials
US-2023320195-A1 · Oct 5, 2023 · US
Electroactive materials
US-11683979-B2 · Jun 20, 2023 · US
System and method for continuously producing diethyl methylphosphonite
US-2023183275-A1 · Jun 15, 2023 · US
Production method of biarylphosphine
US-11453687-B2 · Sep 27, 2022 · US
Selective hydrogenation of alkynes to alkenes in the presence of a phosphorus compound and an organic sulphur compound
US-2022242807-A1 · Aug 4, 2022 · US
Selective hydrogenation of alkynols to alkenols in the presence of a phosphorus compound
US-2022234974-A1 · Jul 28, 2022 · US
Method for converting N,N-dialkylamide compound into ester compound using complex of fourth-period transition metal as catalyst
US-11377415-B2 · Jul 5, 2022 · US
Production method of biarylphosphine
US-2022169667-A1 · Jun 2, 2022 · US
Methods of making and using soluble mhc molecules
US-2022088135-A1 · Mar 24, 2022 · US
Ligand, oligomerization catalyst comprising same, and method for producing ethylene oligomer by using oligomerization catalyst
US-11224870-B2 · Jan 18, 2022 · US
Phosphine transition metal complex, method for producing same, and anticancer agent
US-11180516-B2 · Nov 23, 2021 · US
Methods of making and using soluble MHC molecules
US-11129872-B2 · Sep 28, 2021 · US
Phosphine transition metal complex, method for producing same, and anticancer agent
US-2021253612-A1 · Aug 19, 2021 · US
Ligand, Oligomerization Catalyst Comprising Same, and Method for Producing Ethylene Oligomer by Using Oligomerization Catalyst
US-2021170381-A1 · Jun 10, 2021 · US
Ligand compound, organic chromium compound, catalyst system for olefin oligomerizatin, and method for oligomerizing olefin using same
US-10947256-B2 · Mar 16, 2021 · US
Method for converting n,n-dialkylamide compound into ester compound using complex of fourth-period transition metal as catalyst
US-2020399200-A1 · Dec 24, 2020 · US
Phosphorus electrolytic solution containing magnesium ions
US-10862169-B2 · Dec 8, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07F9/50?
- CPC C07F9/50 is the Cooperative Patent Classification code for “Organo-phosphines.”
- How many patents are filed under CPC C07F9/50 (Organo-phosphines)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC C07F9/50 growing?
- Publication counts under this code: 4 in 2023 vs 2 in 2025 (latest complete years).