Bulk material handling methods, systems, subsystems, and apparatuses
US-2026084906-A1 · Mar 26, 2026 · US
in bunkers, hoppers, or like containers
in bunkers, hoppers, or like containers · 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 | B65G3/04 |
| Official title | in bunkers, hoppers, or like containers |
| Display label | in bunkers, hoppers, or like containers |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 4 |
| 2021 | 5 |
| 2022 | 7 |
| 2023 | 7 |
| 2024 | 7 |
| 2025 | 6 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of moving proppant from a sand container
US-12497251-B2 · Dec 16, 2025 · US
Hopper
US-2025187838-A1 · Jun 12, 2025 · US
Bulk material receiving, conveying, storing, and dispensing
US-12304725-B2 · May 20, 2025 · US
Bulk material handling methods, systems, subsystems, and apparatuses
US-12291410-B2 · May 6, 2025 · US
Bulk material retrieval and transport system and methods
US-12246926-B2 · Mar 11, 2025 · US
Powder Hopper for the Gravity-Driven Feeding of Powdered Electrode Precursor Material Into a Nip of a Dry Electrode Caldender, Corresponding Assembly, and Corresponding Method
US-2025001650-A1 · Jan 2, 2025 · US
Sensor System for Dry Powder Electrode Formation and Methods of Using the Same
US-2024417177-A1 · Dec 19, 2024 · US
Proppant supply system
US-2024367896-A1 · Nov 7, 2024 · US
Method of Moving Proppant from a Sand Container
US-2024327141-A1 · Oct 3, 2024 · US
Remote control bulk material monitoring and delivery system
US-12084297-B2 · Sep 10, 2024 · US
Proppant supply system
US-12077372-B2 · Sep 3, 2024 · US
Article retaining device and supporting body
US-11975923-B2 · May 7, 2024 · US
Control device, granular material supply system, control method, and program
US-11858757-B2 · Jan 2, 2024 · US
Remote control bulk material monitoring and delivery system
US-2023271795-A1 · Aug 31, 2023 · US
Sensor system for dry powder electrode formation and methods of using the same
US-2023273061-A1 · Aug 31, 2023 · US
System and Method for a Working Machine
US-2023264905-A1 · Aug 24, 2023 · US
Apparatus for delivering frozen confection comprising particulate material
US-11712046-B2 · Aug 1, 2023 · US
Control device, granular material supply system, control method, and program
US-2023202778-A1 · Jun 29, 2023 · US
Remote control bulk material monitoring and delivery system
US-11655106-B2 · May 23, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B65G3/04?
- CPC B65G3/04 is the Cooperative Patent Classification code for “in bunkers, hoppers, or like containers.”
- How many patents are filed under CPC B65G3/04 (in bunkers, hoppers, or like containers)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC B65G3/04 growing?
- Publication counts under this code: 7 in 2024 vs 6 in 2025 (latest complete years).