Pneumatic conveying system and method using optical flow characterization data
US-10155628-B2 · Dec 18, 2018 · US
Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material {(controlling the flow of coal firing systems C21B5/003)}
Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material {(controlling the flow of coal firing systems C21B5/003)} · 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 | B65G53/66 |
| Official title | Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material {(controlling the flow of coal firing systems C21B5/003)} |
| Display label | Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material {(controlling the flow of coal firing systems C21B5/003)} |
| Total patents | 184 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 14 |
| 2017 | 25 |
| 2018 | 29 |
| 2019 | 30 |
| 2020 | 19 |
| 2021 | 18 |
| 2022 | 8 |
| 2023 | 10 |
| 2024 | 10 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metering air introduction during material delivery to maintain conveying vacuum level
US-2018346262-A1 · Dec 6, 2018 · US
Variable frequency drive combined with flow limiter set for limiting flow to selected level above design choice
US-10144598-B2 · Dec 4, 2018 · US
Tank pressurization control for air carts
US-2018222690-A1 · Aug 9, 2018 · US
Tank pressurization control for air carts
US-2018222691-A1 · Aug 9, 2018 · US
Tank pressurization control for air carts
US-2018222692-A1 · Aug 9, 2018 · US
Tank pressurization control for air carts
US-2018170692-A1 · Jun 21, 2018 · US
Self controlled pneumatic loading method for granular materials
US-2018148277-A1 · May 31, 2018 · US
Tower configuration gravimetric blender
US-2018099253-A1 · Apr 12, 2018 · US
Multiple sensor resin delivery optimizing vacuum pump operation
US-2018099449-A1 · Apr 12, 2018 · US
Resin delivery apparatus and method with plural air flow limiters
US-9937651-B2 · Apr 10, 2018 · US
Identification of material type and condition in a dry bulk material storage bin
US-2017370854-A1 · Dec 28, 2017 · US
Powder feeding device, in particular for coating powder
US-9834391-B2 · Dec 5, 2017 · US
Agricultural air cart assembly with individually controllable air flow in the product distribution lines
US-9814175-B2 · Nov 14, 2017 · US
Measurement of Product Pellets Flow Rate
US-2017305689-A1 · Oct 26, 2017 · US
Feeding systems and methods of using feeding systems
US-2017283969-A1 · Oct 5, 2017 · US
Pressurising of bulk material in lock hoppers
US-2017283720-A1 · Oct 5, 2017 · US
Identification of material type and condition in a dry bulk material storage bin
US-9772294-B2 · Sep 26, 2017 · US
Powder transport device and char recovery device
US-2017260465-A1 · Sep 14, 2017 · US
Powder conveyor and associated operating method
US-9745148-B2 · Aug 29, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B65G53/66?
- CPC B65G53/66 is the Cooperative Patent Classification code for “Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material {(controlling the flow of coal firing systems C21B5/003)}.”
- How many patents are filed under CPC B65G53/66 (Use of indicator or control devices, e.g. for controlling gas pressure, for controlling proportions of material and gas, for indicating or preventing jamming of material {(controlling the flow of coal firing systems C21B5/003)})?
- Our database includes 184 publications tagged with this CPC code.
- Is patent activity under CPC B65G53/66 growing?
- Publication counts under this code: 10 in 2024 vs 9 in 2025 (latest complete years).