Compositions and methods for providing increased strength in ceiling, flooring, and building products
US-2020248408-A1 · Aug 6, 2020 · US
Perlite
Perlite · 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 | C04B14/18 |
| Official title | Perlite |
| Display label | Perlite |
| Total patents | 122 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 5 |
| 2016 | 8 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 19 |
| 2020 | 18 |
| 2021 | 20 |
| 2022 | 9 |
| 2023 | 14 |
| 2024 | 8 |
| 2025 | 7 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Building material and method for manufacturing building material
US-2020215718-A1 · Jul 9, 2020 · US
Co-grinding slag with other material for hydraulic binders
US-10703958-B2 · Jul 7, 2020 · US
Hydrating swellable clays
US-10703676-B2 · Jul 7, 2020 · US
High noise reduction coefficient, low density acoustical tiles
US-10696594-B2 · Jun 30, 2020 · US
Ultra stable cementitious material formulation, process for its making, and ultra stable tile backer board formulation and processes for its making
US-10696595-B2 · Jun 30, 2020 · US
Ceiling tile compositions comprising microfibrillated cellulose and methods for making same
US-10669671-B2 · Jun 2, 2020 · US
Contact layer with a solid filler component
US-10655323-B2 · May 19, 2020 · US
Lightweight concrete
US-10597328-B2 · Mar 24, 2020 · US
Gypsum Panels, Methods, and Systems
US-2020087209-A1 · Mar 19, 2020 · US
Ultra stable cementitious material formulation, process for its making, and ultra stable tile backer board formulation and processes for its making
US-2020067448-A1 · Feb 27, 2020 · US
Compositions for use in geosynthetic liners
US-2020039881-A1 · Feb 6, 2020 · US
Thermal insulating masonry hollow bricks
US-10538916-B1 · Jan 21, 2020 · US
Thermal insulating masonry hollow bricks
US-2020002944-A1 · Jan 2, 2020 · US
Fire barrier building product and method and system for making same
US-10508438-B2 · Dec 17, 2019 · US
Phospholipid dedusting agents for joint compounds
US-2019375681-A1 · Dec 12, 2019 · US
Building with ultra stable cementitious material formulation
US-2019379319-A1 · Dec 12, 2019 · US
Lightweight concrete composition containing perlite and resin beads
US-10494301-B2 · Dec 3, 2019 · US
Ultra stable cementitious material formulation, process for its making, and ultra stable tile backer board formulation and processes for its making
US-2019341875-A1 · Nov 7, 2019 · US
Method for production of acoustical panels
US-10464846-B2 · Nov 5, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B14/18?
- CPC C04B14/18 is the Cooperative Patent Classification code for “Perlite.”
- How many patents are filed under CPC C04B14/18 (Perlite)?
- Our database includes 122 publications tagged with this CPC code.
- Is patent activity under CPC C04B14/18 growing?
- Publication counts under this code: 8 in 2024 vs 7 in 2025 (latest complete years).