Air filter medium, filter pleat pack, and air filter unit
US-2026077285-A1 · Mar 19, 2026 · US
Glass or glassy material
Glass or glassy material · 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 | B01D39/2003 |
| Official title | {Glass or glassy material} |
| Display label | Glass or glassy material |
| Total patents | 50 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 4 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 6 |
| 2023 | 8 |
| 2024 | 3 |
| 2025 | 7 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Member, container, chemical liquid storage body, reactor, distillation column, filter unit, storage tank, pipe line, and chemical liquid manufacturing method
US-12559301-B2 · Feb 24, 2026 · US
Honeycomb structure and exhaust gas purifying device
US-12521705-B2 · Jan 13, 2026 · US
Hydrocarbon fluid-water separation
US-12515153-B2 · Jan 6, 2026 · US
Porous structure such as for filters, and making the same
US-2026001016-A1 · Jan 1, 2026 · US
Air filter medium, filter pleat pack, and air filter unit
US-12440794-B2 · Oct 14, 2025 · US
Filters, filter systems, and methods of use
US-12427465-B2 · Sep 30, 2025 · US
Air purification filter and air purifier including same
US-12409458-B2 · Sep 9, 2025 · US
Patterned nanofiber arrays assembled through patterned filtration
US-2025262597-A1 · Aug 21, 2025 · US
Patterned nanofiber arrays assembled through patterned filtration
US-12303839-B2 · May 20, 2025 · US
Porous composite structure, method of preparing the same, article including the same, and air purifier including the same
US-12280325-B2 · Apr 22, 2025 · US
Micro-machined filter for magnetic particles
US-12263423-B2 · Apr 1, 2025 · US
Composition and methods for making glass ceramic porous structures
US-2024408566-A1 · Dec 12, 2024 · US
Functionalized porous material and related methods
US-2024198315-A1 · Jun 20, 2024 · US
Hydrocarbon fluid-water separation
US-2024173658-A1 · May 30, 2024 · US
Air filter medium, filter pleat pack, and air filter unit
US-2023364547-A1 · Nov 16, 2023 · US
Hydrocarbon fluid-water separation
US-11806650-B2 · Nov 7, 2023 · US
Antimicrobial fibers
US-11767423-B2 · Sep 26, 2023 · US
Micro-machined filter for magnetic particles
US-2023285879-A1 · Sep 14, 2023 · US
Micro-machined filter for magnetic particles
US-11684878-B2 · Jun 27, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D39/2003?
- CPC B01D39/2003 is the Cooperative Patent Classification code for “Glass or glassy material.”
- How many patents are filed under CPC B01D39/2003 (Glass or glassy material)?
- Our database includes 50 publications tagged with this CPC code.
- Is patent activity under CPC B01D39/2003 growing?
- Publication counts under this code: 3 in 2024 vs 7 in 2025 (latest complete years).