Unsupported metal substituted heteropolyacid catalysts for dimerization and/or oligomerization of olefins
US-9498772-B2 · Nov 22, 2016 · US
Operations & Transport
Operations & Transport · 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 | B01J27/19 |
| Official title | — |
| Display label | Operations & Transport (mapped technology topic) |
| Total patents | 333 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 39 |
| 2016 | 33 |
| 2017 | 29 |
| 2018 | 31 |
| 2019 | 41 |
| 2020 | 29 |
| 2021 | 43 |
| 2022 | 30 |
| 2023 | 15 |
| 2024 | 17 |
| 2025 | 18 |
| 2026 | 8 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing hexamethylenediamine
US-2016326092-A1 · Nov 10, 2016 · US
Process for the preparation of a catalyst, catalyst and its use in a hydroconversion and/or hydrotreatment process
US-2016303546-A1 · Oct 20, 2016 · US
Ionic liquid catalyst for improvement of heavy and extra heavy crude
US-9464239-B2 · Oct 11, 2016 · US
Hydrotreating catalyst for hydrocarbon oil and method for producing same, and hydrocarbon oil hydrotreating method using same
US-9463452-B2 · Oct 11, 2016 · US
Process for preparing a hydrotreating catalyst
US-2016271594-A1 · Sep 22, 2016 · US
Process for preparing a hydrotreating catalyst
US-2016264879-A1 · Sep 15, 2016 · US
Catalyst and process for hydroconversion of a heavy feedstock
US-2016256856-A1 · Sep 8, 2016 · US
Hydrogenation treatment catalyst for heavy hydrocarbon oil, and method for hydrogenaton treatment of heavy hydrocarbon oil
US-2016228858-A1 · Aug 11, 2016 · US
Hydroprocessing catalyst for heavy hydrocarbon oil, method for manufacturing hydroprocessing catalyst for heavy hydrocarbon oil, and hydroprocessing method for heavy hydrocarbon oil
US-2016230102-A1 · Aug 11, 2016 · US
Hydrogenation catalyst for heavy hydrocarbon oil, production method for hydrogenation catalyst for heavy hydrocarbon oil, and hydrogenation method for heavy hydrocarbon oil
US-2016220986-A1 · Aug 4, 2016 · US
Catalyst and process for hydroconversion of a heavy feedstock
US-9371496-B2 · Jun 21, 2016 · US
Self-activating hydroprocessing catalyst having enhanced activity and self-activation characteristics and its use for treating resid feedstocks
US-2016129428-A1 · May 12, 2016 · US
Process for hydrotreating a hydrocarbon cut with a boiling point of more than 250° C. in the presence of a sulphide catalyst prepared using a cyclic oligosaccharide
US-9321041-B2 · Apr 26, 2016 · US
Methods for providing bond activation catalysts and related catalysts, systems, and methods
US-9308525-B2 · Apr 12, 2016 · US
Process for manufacturing acrolein/acrylic acid
US-9296676-B2 · Mar 29, 2016 · US
Hydroprocessing catalyst prepared with waste catalyst fines and its use
US-2016059222-A1 · Mar 3, 2016 · US
Method for producing monocyclic aromatic hydrocarbon
US-2016024400-A1 · Jan 28, 2016 · US
Method for producing monosilane and tetraalkoxysilane
US-9233987-B2 · Jan 12, 2016 · US
Stable support for Fischer-Tropsch catalyst
US-9233360-B1 · Jan 12, 2016 · US
Next steps
Free tools are coming soon. Tell us what you want to track and we'll notify you.
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J27/19?
- CPC B01J27/19 is the Cooperative Patent Classification code for “Operations & Transport.”
- How many patents are filed under CPC B01J27/19 (Operations & Transport)?
- Our database includes 333 publications tagged with this CPC code.
- Is patent activity under CPC B01J27/19 growing?
- Publication counts under this code: 17 in 2024 vs 18 in 2025 (latest complete years).