Phosphinyl amidine compounds, metal complexes, catalyst systems, and their use to oligomerize or polymerize olefins
US-10144752-B2 · Dec 4, 2018 · US
containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)}
containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)} · 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 | B01J31/18 |
| Official title | containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)} |
| Display label | containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)} |
| Total patents | 104 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 14 |
| 2017 | 17 |
| 2018 | 10 |
| 2019 | 10 |
| 2020 | 5 |
| 2021 | 6 |
| 2022 | 5 |
| 2023 | 5 |
| 2024 | 3 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Robust catalyst for hydrogen production from p-formaldehyde
US-2018265355-A1 · Sep 20, 2018 · US
Catalyst system for olefin oligomerization and method for oligomerizing olefins using the same
US-2018229226-A1 · Aug 16, 2018 · US
Rh/WxC Heterogeneous Catalyst for Preparing Acetic Acid by Carbonylation Reaction
US-2017342012-A1 · Nov 30, 2017 · US
Phosphinyl Amidine Compounds, Metal Complexes, Catalyst Systems, and Their Use to Oligomerize or Polymerize Olefins
US-2017305945-A1 · Oct 26, 2017 · US
Hydrosilylation iron catalyst
US-2017260216-A1 · Sep 14, 2017 · US
Phosphinyl amidine compounds, metal complexes, catalyst systems, and their use to oligomerize or polymerize olefins
US-9732106-B2 · Aug 15, 2017 · US
Heterocyclic coupling catalysts and methods related thereto
US-9700881-B2 · Jul 11, 2017 · US
Metal-organic frameworks containing nitrogen-donor ligands for efficient catalytic organic transformations
US-2017182486-A1 · Jun 29, 2017 · US
Nickel form for preparation of catalytic nickel-ligand complexes
US-9687836-B2 · Jun 27, 2017 · US
Catalyst composition pre-formation unit for preparing a catalyst composition for oligomerization of ethylene
US-2017165657-A1 · Jun 15, 2017 · US
Polyketone resin composition having outstanding water resistance
US-2017158851-A1 · Jun 8, 2017 · US
Novel ruthenium complexes and their uses in processes for formation and/or hydrogenation of esters, amides and derivatives thereof
US-2017107251-A1 · Apr 20, 2017 · US
Catalysts for preparing ultra high molecular weight polyethylene (UHMWPE)
US-9617362-B2 · Apr 11, 2017 · US
Zinc Containing Catalysts, Methods For Preparing The Catalysts, And Compositions Containing The Catalysts
US-2017073898-A1 · Mar 16, 2017 · US
Hydrocracking catalyst, process for preparing the same and use thereof
US-2017043323-A1 · Feb 16, 2017 · US
Catalyst for the production of polyols having lower amounts of high molecular weight tail
US-9562134-B2 · Feb 7, 2017 · US
Catalyst preparation process
US-9539566-B2 · Jan 10, 2017 · US
Modified preformation method for catalyst activation in ethylene reactions
US-2017001185-A1 · Jan 5, 2017 · US
Bleach catalysts
US-9533296-B2 · Jan 3, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J31/18?
- CPC B01J31/18 is the Cooperative Patent Classification code for “containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)}.”
- How many patents are filed under CPC B01J31/18 (containing nitrogen, phosphorus, arsenic or antimony {as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms (double metal cyanides B01J27/26; N-heterocyclic carbenes B01J31/2265)})?
- Our database includes 104 publications tagged with this CPC code.
- Is patent activity under CPC B01J31/18 growing?
- Publication counts under this code: 3 in 2024 vs 3 in 2025 (latest complete years).