Methods of changing polyolefin production rate with the composition of the induced condensing agents
US-2017355791-A1 · Dec 14, 2017 · US
in a downward flow
in a downward flow · 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 | B01J8/003 |
| Official title | {in a downward flow} |
| Display label | in a downward flow |
| Total patents | 253 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 33 |
| 2017 | 17 |
| 2018 | 23 |
| 2019 | 23 |
| 2020 | 30 |
| 2021 | 18 |
| 2022 | 24 |
| 2023 | 19 |
| 2024 | 18 |
| 2025 | 21 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Monitoring system for annular scrubbers
US-2017296966-A1 · Oct 19, 2017 · US
Control Methods and Systems For Polymer Product Purge
US-2017129969-A1 · May 11, 2017 · US
Monitoring device installation method and apparatus
US-9623391-B2 · Apr 18, 2017 · US
Process and apparatus for producing and recycling cracked hydrocarbons
US-9567537-B2 · Feb 14, 2017 · US
Ethylene-to-liquids systems and methods
US-2016368834-A1 · Dec 22, 2016 · US
Method of loading a vessel
US-2016355399-A1 · Dec 8, 2016 · US
Method for safely and quickly shutting down and cleaning a hydroprocessing reactor of spent catalyst via a water flooding technique
US-2016346815-A1 · Dec 1, 2016 · US
System for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using flexible and removable slowing elements
US-9492802-B2 · Nov 15, 2016 · US
Pneumatic system for densely loading catalyst into bayonet tubes for a steam reforming reactor-exchanger with a detachable feed tube for gas
US-9486766-B2 · Nov 8, 2016 · US
System for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using removable helical elements
US-9486764-B2 · Nov 8, 2016 · US
Pneumatic system for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using an auxiliary tube for introducing solid particles
US-9452399-B2 · Sep 27, 2016 · US
System for dense loading of catalyst into bayonet tubes for a steam reforming exchanger-reactor using removable deflectors
US-9452400-B2 · Sep 27, 2016 · US
Radial flow process and apparatus
US-9447901-B2 · Sep 20, 2016 · US
Mixing device for mixing raw material and catalyst in fluid catalytic cracking device
US-9446368-B2 · Sep 20, 2016 · US
Process and apparatus for producing and recycling cracked hydrocarbons
US-2016264890-A1 · Sep 15, 2016 · US
Monitoring device installation method and apparatus
US-2016263542-A1 · Sep 15, 2016 · US
Process and apparatus for heating catalyst in a regenerator
US-2016167006-A1 · Jun 16, 2016 · US
Process and apparatus for indirect catalyst heating in a regenerator
US-2016168049-A1 · Jun 16, 2016 · US
Catalyst cooler for regenerated catalyst
US-2016169506-A1 · Jun 16, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01J8/003?
- CPC B01J8/003 is the Cooperative Patent Classification code for “in a downward flow.”
- How many patents are filed under CPC B01J8/003 (in a downward flow)?
- Our database includes 253 publications tagged with this CPC code.
- Is patent activity under CPC B01J8/003 growing?
- Publication counts under this code: 18 in 2024 vs 21 in 2025 (latest complete years).