Hydride-coated microparticles and methods for making the same
US-11091826-B2 · Aug 17, 2021 · US
Hollow particles, including tubes and shells
Hollow particles, including tubes and shells · 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 | B22F1/0549 |
| Official title | {Hollow particles, including tubes and shells} |
| Display label | Hollow particles, including tubes and shells |
| Total patents | 74 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 12 |
| 2016 | 9 |
| 2017 | 8 |
| 2018 | 11 |
| 2019 | 3 |
| 2020 | 13 |
| 2021 | 4 |
| 2022 | 7 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Hydride-coated microparticles and methods for making the same
US-11053575-B2 · Jul 6, 2021 · US
Polyhedral metal nanocages with well-defined facets and ultrathin walls and methods of making and uses thereof
US-2021114092-A1 · Apr 22, 2021 · US
Methods of nanostructure formation and shape selection
US-2021032099-A1 · Feb 4, 2021 · US
Hydride-coated microparticles and methods for making the same
US-2020377983-A1 · Dec 3, 2020 · US
Polyhedral metal nanocages with well-defined facets and ultrathin walls and methods of making and uses thereof
US-10835955-B2 · Nov 17, 2020 · US
Method of manufacturing metal nano coil
US-10790086-B2 · Sep 29, 2020 · US
Hydride-coated microparticles and methods for making the same
US-10787728-B2 · Sep 29, 2020 · US
Erosion resistant hard composite materials
US-10751839-B2 · Aug 25, 2020 · US
High-throughput fabrication of patterned surfaces and nanostructures by hot-pulling of metallic glass arrays
US-10745788-B2 · Aug 18, 2020 · US
Methods of producing hollow metal nanospheres
US-2020230071-A1 · Jul 23, 2020 · US
Methods of performing brachytherapy
US-10688203-B2 · Jun 23, 2020 · US
Core shell
US-10675681-B2 · Jun 9, 2020 · US
General synthetic strategy for fabrication of multi-metallic nanostructures
US-2020156157-A1 · May 21, 2020 · US
Excavated nanoframes with three-dimensional electrocatalytic surfaces
US-10646921-B2 · May 12, 2020 · US
Method of making metal and metal oxide nanoparticles
US-10626021-B2 · Apr 21, 2020 · US
Methods of Producing Cobalt Nanoparticles and Hollow Gold Nanospheres and Kits for Practicing Same
US-2020114420-A1 · Apr 16, 2020 · US
Methods of nanostructure formation and shape selection
US-10384936-B2 · Aug 20, 2019 · US
Metal nanoparticles
US-10322452-B2 · Jun 18, 2019 · US
Hydride-coated microparticles and methods for making the same
US-2019085435-A1 · Mar 21, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B22F1/0549?
- CPC B22F1/0549 is the Cooperative Patent Classification code for “Hollow particles, including tubes and shells.”
- How many patents are filed under CPC B22F1/0549 (Hollow particles, including tubes and shells)?
- Our database includes 74 publications tagged with this CPC code.
- Is patent activity under CPC B22F1/0549 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).