Method for oligomerizing an olefin
US-10471416-B2 · Nov 12, 2019 · US
Chemistry & Metallurgy
Chemistry & Metallurgy · 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 | C08F2/40 |
| Official title | — |
| Display label | Chemistry & Metallurgy (mapped technology topic) |
| Total patents | 148 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 13 |
| 2017 | 9 |
| 2018 | 13 |
| 2019 | 18 |
| 2020 | 23 |
| 2021 | 14 |
| 2022 | 11 |
| 2023 | 5 |
| 2024 | 12 |
| 2025 | 10 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
US-2019241496-A1 · Aug 8, 2019 · US
Polymerization inhibitor compositions
US-10370331-B2 · Aug 6, 2019 · US
A Method for Preparing Superabsorbent Polymer
US-2019224645-A1 · Jul 25, 2019 · US
Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
US-10308585-B2 · Jun 4, 2019 · US
Storage stable aqueous organic peroxide emulsions
US-2019071397-A1 · Mar 7, 2019 · US
Polymerization process
US-10189915-B2 · Jan 29, 2019 · US
Method for improved reactve monomer production with membrane filtration
US-2018361319-A1 · Dec 20, 2018 · US
Method for preparing oligomerization catalyst system and oligomerization catalyst system prepared thereby
US-2018339289-A1 · Nov 29, 2018 · US
Nitroxide hydroxylamine and phenylenediamine combinations as polymerization inhibitors for ethylenically unsaturated monomer processes
US-10112888-B2 · Oct 30, 2018 · US
Polymerization inhibiting system and polymerization inhibiting method
US-2018297916-A1 · Oct 18, 2018 · US
Polymerization inhibitor compositions
US-2018258014-A1 · Sep 13, 2018 · US
Process for producing (meth)acrylic resin composition
US-10017587-B2 · Jul 10, 2018 · US
Method for producing one or more ethylene-based polymers
US-9988475-B2 · Jun 5, 2018 · US
Hydroquinone compounds for inhibiting monomer polymerization
US-9944577-B2 · Apr 17, 2018 · US
Hydrocarbon polymers comprising two exo-vinylene cyclic carbonate terminal groups
US-2018072842-A1 · Mar 15, 2018 · US
Use of stable lipophilic hydroxylamine compounds for inhibiting polymerization of vinyl monomers
US-9914701-B2 · Mar 13, 2018 · US
Quinone compounds for inhibiting monomer polymerization
US-9884795-B2 · Feb 6, 2018 · US
Method for olefin oligomerization
US-2018009727-A1 · Jan 11, 2018 · US
Process for producing (meth)acrylic resin composition
US-2018009913-A1 · Jan 11, 2018 · US
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F2/40?
- CPC C08F2/40 is the Cooperative Patent Classification code for “Chemistry & Metallurgy.”
- How many patents are filed under CPC C08F2/40 (Chemistry & Metallurgy)?
- Our database includes 148 publications tagged with this CPC code.
- Is patent activity under CPC C08F2/40 growing?
- Publication counts under this code: 12 in 2024 vs 10 in 2025 (latest complete years).