Powder regulating device
US-2024316648-A1 · Sep 26, 2024 · US
using hoppers
using hoppers · 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 | B29C64/329 |
| Official title | using hoppers |
| Display label | using hoppers |
| Total patents | 352 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 6 |
| 2017 | 15 |
| 2018 | 28 |
| 2019 | 23 |
| 2020 | 42 |
| 2021 | 74 |
| 2022 | 52 |
| 2023 | 33 |
| 2024 | 33 |
| 2025 | 32 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Techniques for powder delivery in additive fabrication and related systems and methods
US-2024017493-A1 · Jan 18, 2024 · US
Solid freeform fabrication using a plurality of modeling materials
US-2019270253-A1 · Sep 5, 2019 · US
Three-dimensional printing nozzle, three-dimensional printing nozzle assembly and three-dimensional printing apparatus
US-2019248070-A1 · Aug 15, 2019 · US
Build material container
US-10160159-B2 · Dec 25, 2018 · US
3D Printing Method and Apparatus
US-2018361665-A1 · Dec 20, 2018 · US
3D Printing Method and Apparatus
US-2018361664-A1 · Dec 20, 2018 · US
Method and device for dosing of a powder for the additive manufacture of a product
US-2018345541-A1 · Dec 6, 2018 · US
Three-dimensional modeling apparatus
US-2018326657-A1 · Nov 15, 2018 · US
Powder application apparatus and method of operating a powder application apparatus
US-2018297276-A1 · Oct 18, 2018 · US
Supplying build material
US-2018264728-A1 · Sep 20, 2018 · US
Additive manufacturing using a selective recoater
US-2018250749-A1 · Sep 6, 2018 · US
Machine and process for powder-based additive manufacturing
US-2018229307-A1 · Aug 16, 2018 · US
Powder application apparatus and method of operating a powder application apparatus
US-10046520-B2 · Aug 14, 2018 · US
Three Dimensional Printing System with Efficient Powder Handling System
US-2018185915-A1 · Jul 5, 2018 · US
Build material container
US-2018169945-A1 · Jun 21, 2018 · US
3D Printing Method and Apparatus
US-2018162046-A1 · Jun 14, 2018 · US
Selective powder dosing for an additively manufacturing system
US-2018134027-A1 · May 17, 2018 · US
Operation of three-dimensional printer components
US-2018111196-A1 · Apr 26, 2018 · US
Operation of three-dimensional printer components
US-2018111193-A1 · Apr 26, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C64/329?
- CPC B29C64/329 is the Cooperative Patent Classification code for “using hoppers.”
- How many patents are filed under CPC B29C64/329 (using hoppers)?
- Our database includes 352 publications tagged with this CPC code.
- Is patent activity under CPC B29C64/329 growing?
- Publication counts under this code: 33 in 2024 vs 32 in 2025 (latest complete years).