Laser system and process with buffer material
US-10131016-B1 · Nov 20, 2018 · US
Cutting or splitting in curves, especially for making spectacle lenses
Cutting or splitting in curves, especially for making spectacle lenses · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C03B33/04 |
| Official title | Cutting or splitting in curves, especially for making spectacle lenses |
| Display label | Cutting or splitting in curves, especially for making spectacle lenses |
| Total patents | 223 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 21 |
| 2017 | 15 |
| 2018 | 24 |
| 2019 | 28 |
| 2020 | 17 |
| 2021 | 27 |
| 2022 | 14 |
| 2023 | 15 |
| 2024 | 25 |
| 2025 | 14 |
| 2026 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Electrochromic structure and method of separating electrochromic structure
US-2018299741-A1 · Oct 18, 2018 · US
Methods of manufacturing a thin glass pane
US-10035724-B2 · Jul 31, 2018 · US
Methods and apparatuses for fabricating glass articles
US-9975799-B2 · May 22, 2018 · US
Laser cutting apparatus and laser cutting method using the same
US-2018133842-A1 · May 17, 2018 · US
Method for manufacturing a decorative panel
US-2018111874-A1 · Apr 26, 2018 · US
Shaping of brittle materials with controlled surface and bulk properties
US-9919380-B2 · Mar 20, 2018 · US
Glass ribbon breaking devices and methods of producing glass sheets
US-2018044218-A1 · Feb 15, 2018 · US
Process for breaking out an inner shape in a glass sheet
US-2017355634-A1 · Dec 14, 2017 · US
Glass ribbon breaking devices and methods of producing glass sheets
US-9828276-B2 · Nov 28, 2017 · US
Processing 3D shaped transparent brittle substrate
US-9815730-B2 · Nov 14, 2017 · US
Sheet glass product with increased edge strength and method for producing same
US-2017304980-A1 · Oct 26, 2017 · US
Method and apparatus for yielding high edge strength in cutting of flexible thin glass
US-2017275197-A1 · Sep 28, 2017 · US
Process for manufacturing glass sheets of complex shape
US-2017217819-A1 · Aug 3, 2017 · US
Method for breaking out a sheet of glass
US-2017217818-A1 · Aug 3, 2017 · US
Methods and apparatuses for fabricating glass articles
US-2017197862-A1 · Jul 13, 2017 · US
Laser Processing of Electronic Device Structures
US-2017197868-A1 · Jul 13, 2017 · US
Chip manufacturing method
US-9682440-B2 · Jun 20, 2017 · US
Methods and apparatus for free-shape cutting of flexible thin glass
US-9624121-B2 · Apr 18, 2017 · US
Methods and apparatuses for fabricating glass articles
US-9617180-B2 · Apr 11, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C03B33/04?
- CPC C03B33/04 is the Cooperative Patent Classification code for “Cutting or splitting in curves, especially for making spectacle lenses.”
- How many patents are filed under CPC C03B33/04 (Cutting or splitting in curves, especially for making spectacle lenses)?
- Our database includes 223 publications tagged with this CPC code.
- Is patent activity under CPC C03B33/04 growing?
- Publication counts under this code: 25 in 2024 vs 14 in 2025 (latest complete years).