Powder handling device
US-2026034730-A1 · Feb 5, 2026 · US
by means of sealed systems
by means of sealed systems · 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 | B65G69/181 |
| Official title | {by means of sealed systems} |
| Display label | by means of sealed systems |
| Total patents | 37 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2017 | 9 |
| 2018 | 12 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 1 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Raw material input apparatus and raw material input method
US-2025368459-A1 · Dec 4, 2025 · US
Powder handling device
US-12454100-B2 · Oct 28, 2025 · US
Apparatus for Introducing Active Material for Use in Secondary Battery
US-2025304304-A1 · Oct 2, 2025 · US
Bulk material retrieval and transport system and methods
US-12246926-B2 · Mar 11, 2025 · US
Powder handling device
US-2024140033-A1 · May 2, 2024 · US
Transfer station for API seed crystals
US-11884428-B2 · Jan 30, 2024 · US
Bulk material retrieval and transport system and methods
US-2022106123-A1 · Apr 7, 2022 · US
Transfer station for api seed crystals
US-2021290487-A1 · Sep 23, 2021 · US
Dust control systems for bulk material containers
US-11066259-B2 · Jul 20, 2021 · US
Conveyor with integrated dust collector system
US-10926967-B2 · Feb 23, 2021 · US
Dust-free system and method of manufacturing panel
US-2020207559-A1 · Jul 2, 2020 · US
Conveyor with integrated dust collector system
US-10676296-B2 · Jun 9, 2020 · US
Dust control systems for bulk material containers
US-2019276225-A1 · Sep 12, 2019 · US
Conveyor with integrated dust collector system
US-10065816-B2 · Sep 4, 2018 · US
Conveyor with integrated dust collector system
US-10035668-B2 · Jul 31, 2018 · US
Conveyor with integrated dust collector system
US-2018208417-A1 · Jul 26, 2018 · US
Methods and systems to transfer proppant for fracking with reduced risk of production and release of silica dust at a well site
US-2018148269-A1 · May 31, 2018 · US
Methods and systems to transfer proppant for fracking with reduced risk of production and release of silica dust at a well site
US-9969564-B2 · May 15, 2018 · US
Conveyor with integrated dust collector system
US-9963308-B2 · May 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B65G69/181?
- CPC B65G69/181 is the Cooperative Patent Classification code for “by means of sealed systems.”
- How many patents are filed under CPC B65G69/181 (by means of sealed systems)?
- Our database includes 37 publications tagged with this CPC code.
- Is patent activity under CPC B65G69/181 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).