Silver-containing polarizing glass and optical isolator
US-2025298170-A1 · Sep 25, 2025 · US
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for phototropic or photochromic glass
for phototropic or photochromic glass · 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 | C03C4/06 |
| Official title | for phototropic or photochromic glass |
| Display label | for phototropic or photochromic glass |
| Total patents | 20 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 5 |
| 2020 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Silver-containing polarizing glass and optical isolator
US-2025298171-A1 · Sep 25, 2025 · US
Self-healing oxides for ionizing radiation damage
US-2025051212-A1 · Feb 13, 2025 · US
Photosensitive glass and production method therefor
US-2025042802-A1 · Feb 6, 2025 · US
Photochromic glass and photochromic glass windows
US-12202768-B2 · Jan 21, 2025 · US
Photochromic glass and photochromic glass windows
US-2022127184-A1 · Apr 28, 2022 · US
Low temperature laser bleaching of polychromatic glass ceramics
US-2021284572-A1 · Sep 16, 2021 · US
Display devices including photochromic-dichroic compounds and dichroic compounds
US-10866455-B2 · Dec 15, 2020 · US
Reverse photochromic borosilicate glasses
US-10487003-B2 · Nov 26, 2019 · US
Multi-pane window with a low emissivity layer and a photochromic glass
US-10393934-B2 · Aug 27, 2019 · US
Display devices including photochromic-dichroic compounds and dichroic compounds
US-2019121196-A1 · Apr 25, 2019 · US
Energy-harvesting chromogenic devices
US-10253559-B2 · Apr 9, 2019 · US
Thermally strengthened photochromic glass and related systems and methods
US-2019047893-A1 · Feb 14, 2019 · US
Photochromic multi-pane windows
US-2018259696-A1 · Sep 13, 2018 · US
Energy-harvesting chromogenic devices
US-2017089128-A1 · Mar 30, 2017 · US
Multi-pane window with a low emissivity layer and a photochromic glass
US-2017075049-A1 · Mar 16, 2017 · US
Reverse photochromic borosilicate glasses
US-2017050878-A1 · Feb 23, 2017 · US
Reverse photochromic borosilicate glasses
US-9527769-B2 · Dec 27, 2016 · US
Photochromic glasses
US-9145330-B2 · Sep 29, 2015 · US
Reverse photochromic borosilicate glasses
US-2015099130-A1 · Apr 9, 2015 · US