Method for preparing shell-bionic ceramic tool and shell-bionic ceramic tool
US-12384073-B2 · Aug 12, 2025 · US
Ram heads of special form
Ram heads of special form · 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 | B28B3/021 |
| Official title | {Ram heads of special form} |
| Display label | Ram heads of special form |
| Total patents | 43 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 5 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Jewel, in particular for a horological movement, and the manufacturing method thereof
US-12342910-B2 · Jul 1, 2025 · US
Method for producing a multi-layer blank with a through-hole
US-12251277-B2 · Mar 18, 2025 · US
Ceramic ball material, method for manufacturing ceramic ball using same, and ceramic ball
US-2025074831-A1 · Mar 6, 2025 · US
Method for preparing shell-bionic ceramic tool and shell-bionic ceramic tool
US-2024227235-A9 · Jul 11, 2024 · US
Pre-pressed ceramic bodies for fabrication of fluid devices and fluid devices produced
US-2024157600-A1 · May 16, 2024 · US
Method for preparing shell-bionic ceramic tool and shell-bionic ceramic tool
US-2024131746-A1 · Apr 25, 2024 · US
Block, block system and method of making a block
US-11958211-B2 · Apr 16, 2024 · US
Method for producing a multi-layer blank with a through-hole
US-2023249379-A1 · Aug 10, 2023 · US
Method for manufacturing a bevelled stone, particularly for a horological movement
US-11703806-B2 · Jul 18, 2023 · US
Block, block system and method of making a block
US-2023219253-A1 · Jul 13, 2023 · US
Method for manufacturing a bevelled stone, particularly for a horological movement
US-2022365487-A1 · Nov 17, 2022 · US
Block, block system and method of making a block
US-11498241-B2 · Nov 15, 2022 · US
Method for producing a blank, blank and a dental restoration
US-11464608-B2 · Oct 11, 2022 · US
Methods of fabrication of ceramic mirror blanks
US-2022314488-A1 · Oct 6, 2022 · US
Retaining wall containing wall blocks with weight bearing pads
US-11401714-B2 · Aug 2, 2022 · US
Tooling assembly having cam closing feature
US-11104032-B2 · Aug 31, 2021 · US
Jewel, in particular for a horological movement, and the manufacturing method thereof
US-2021169184-A1 · Jun 10, 2021 · US
Jewel, in particular for an horological movement, and manufacturing method thereof
US-2021170629-A1 · Jun 10, 2021 · US
Method for manufacturing a bevelled stone, particularly for a horological movement
US-2021026307-A1 · Jan 28, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B28B3/021?
- CPC B28B3/021 is the Cooperative Patent Classification code for “Ram heads of special form.”
- How many patents are filed under CPC B28B3/021 (Ram heads of special form)?
- Our database includes 43 publications tagged with this CPC code.
- Is patent activity under CPC B28B3/021 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).