Method for making embedded hydrogel contact lenses
US-2025303615-A1 · Oct 2, 2025 · US
having an axis of symmetry
having an axis of symmetry · 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 | B29C39/028 |
| Official title | {having an axis of symmetry} |
| Display label | having an axis of symmetry |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 4 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for making embedded hydrogel contact lenses
US-12358188-B2 · Jul 15, 2025 · US
Systems and methods for casting propellant grain
US-12350864-B2 · Jul 8, 2025 · US
Molding assembly
US-12220846-B2 · Feb 11, 2025 · US
Molding assembly
US-2024416559-A1 · Dec 19, 2024 · US
Systems and methods for casting propellant grain
US-2024149502-A1 · May 9, 2024 · US
Lattice reinforced radius filler
US-11897191-B2 · Feb 13, 2024 · US
Systems and methods for casting propellant grain
US-11883985-B2 · Jan 30, 2024 · US
Method for making embedded hydrogel contact lenses
US-2023339148-A1 · Oct 26, 2023 · US
Microneedle structure and manufacturing method and manufacturing apparatus for the same
US-11648382-B2 · May 16, 2023 · US
Polymeric cutting edge structures and method of manufacturing polymeric cutting edge structures
US-11597112-B2 · Mar 7, 2023 · US
Resin-Filled Material, and the Manufacturing Method Thereof
US-2022289935-A1 · Sep 15, 2022 · US
Systems and methods for casting propellant grain
US-2022080629-A1 · Mar 17, 2022 · US
Polymeric cutting edge structures and method of manufacturing polymeric cutting edge structures
US-2021283793-A1 · Sep 16, 2021 · US
Polymeric cutting edge structures and method of manufacturing polymeric cutting edge structures
US-11059194-B2 · Jul 13, 2021 · US
Lattice reinforced radius filler
US-2021078212-A1 · Mar 18, 2021 · US
Microneedle structure and manufacturing method and manufacturing apparatus for the same
US-2020261708-A1 · Aug 20, 2020 · US
Lattice reinforced radius filler
US-10695958-B2 · Jun 30, 2020 · US
Polymeric cutting edge structures and method of manufacturing polymeric cutting edge structures
US-2020086517-A1 · Mar 19, 2020 · US
Polymeric cutting edge structures and method of manufacturing polymeric cutting edge structures
US-10518429-B2 · Dec 31, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B29C39/028?
- CPC B29C39/028 is the Cooperative Patent Classification code for “having an axis of symmetry.”
- How many patents are filed under CPC B29C39/028 (having an axis of symmetry)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC B29C39/028 growing?
- Publication counts under this code: 4 in 2024 vs 4 in 2025 (latest complete years).