Techniques for powder delivery in additive fabrication and related systems and methods
US-2024017493-A1 · Jan 18, 2024 · US
Rollers
Rollers · 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 | B29C64/218 |
| Official title | Rollers |
| Display label | Rollers |
| Total patents | 686 |
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 | 7 |
| 2017 | 18 |
| 2018 | 51 |
| 2019 | 75 |
| 2020 | 86 |
| 2021 | 119 |
| 2022 | 107 |
| 2023 | 89 |
| 2024 | 68 |
| 2025 | 49 |
| 2026 | 10 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method and device for producing 3d shaped parts using layering technology, and controllable powder roller
US-2018369910-A1 · Dec 27, 2018 · US
3D Printing Method and Apparatus
US-2018361665-A1 · Dec 20, 2018 · US
Three-dimensional (3d) printing method
US-2018354191-A1 · Dec 13, 2018 · US
Multi-light beam energy delivery with rotating polygon for additive manufacturing
US-2018339454-A1 · Nov 29, 2018 · US
Recoater cleaning system
US-2018339467-A1 · Nov 29, 2018 · US
Three-dimensional modeling apparatus
US-2018326657-A1 · Nov 15, 2018 · US
Removable build modules for additive fabrication
US-2018319081-A1 · Nov 8, 2018 · US
Compression roller design and method for additive manufacturing
US-10105894-B1 · Oct 23, 2018 · US
Three-dimensional modeling apparatus, object, and method of manufacturing an object
US-2018290379-A1 · Oct 11, 2018 · US
Filament guide
US-10076870-B1 · Sep 18, 2018 · US
Three-dimensional building apparatus and three-dimensional building method
US-2018250871-A1 · Sep 6, 2018 · US
Methods and apparatus for compressing material during additive manufacturing
US-2018236722-A1 · Aug 23, 2018 · US
Three-dimensional printing apparatus
US-2018222126-A1 · Aug 9, 2018 · US
Three-dimensional object shaping device
US-2018215079-A1 · Aug 2, 2018 · US
Additive manufacturing system having finish-follower
US-2018207870-A1 · Jul 26, 2018 · US
Leveling apparatus for a 3d printer
US-2018200956-A1 · Jul 19, 2018 · US
Three-dimensional modeling apparatus, object, and method of manufacturing an object
US-10022911-B2 · Jul 17, 2018 · US
Forming apparatus and forming method
US-2018194060-A1 · Jul 12, 2018 · US
Forming apparatus and forming method
US-2018169935-A1 · Jun 21, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C64/218?
- CPC B29C64/218 is the Cooperative Patent Classification code for “Rollers.”
- How many patents are filed under CPC B29C64/218 (Rollers)?
- Our database includes 686 publications tagged with this CPC code.
- Is patent activity under CPC B29C64/218 growing?
- Publication counts under this code: 68 in 2024 vs 49 in 2025 (latest complete years).