Voltage nonlinear resistor ceramic and electronic component
US-2016379739-A1 · Dec 29, 2016 · US
Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol
Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol · 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 | C04B2235/3218 |
| Official title | Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol |
| Display label | Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol |
| Total patents | 320 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 32 |
| 2016 | 40 |
| 2017 | 27 |
| 2018 | 24 |
| 2019 | 37 |
| 2020 | 32 |
| 2021 | 25 |
| 2022 | 37 |
| 2023 | 28 |
| 2024 | 19 |
| 2025 | 16 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Dielectric ceramic and multilayer ceramic capacitor
US-9530564-B2 · Dec 27, 2016 · US
Abrasive particles and method of forming same
US-2016340564-A1 · Nov 24, 2016 · US
Boron Nitride Agglomerates, Method of Production Thereof and Use Thereof
US-2016326063-A1 · Nov 10, 2016 · US
Honeycomb structural body and method for manufacturing the same
US-2016288113-A1 · Oct 6, 2016 · US
Hydroxide-ion-conductive dense membrane and composite material
US-2016268568-A1 · Sep 15, 2016 · US
Method for producing a refractory material based on magnesia or magnesia spinel, and refractory material based on magnesia or magnesia spinel
US-9428421-B2 · Aug 30, 2016 · US
Ultrafine continuous fibrous ceramic filter and method of manufacturing same
US-2016244373-A1 · Aug 25, 2016 · US
Boron nitride agglomerates, method of production thereof and use thereof
US-9422200-B2 · Aug 23, 2016 · US
Product having a high alumina content
US-2016185666-A1 · Jun 30, 2016 · US
Porous material, honeycomb structure, and production method for porous material
US-9358529-B2 · Jun 7, 2016 · US
Ceramic honeycomb structure and its production method
US-9353015-B2 · May 31, 2016 · US
Porous material and honeycomb structure
US-9346714-B2 · May 24, 2016 · US
Method for controlling aluminum titanate ceramic filter properties
US-2016122855-A1 · May 5, 2016 · US
Honeycomb catalyst body
US-9303543-B2 · Apr 5, 2016 · US
Laminated roofing product including recycled roofing material and method of forming the same
US-9290944-B2 · Mar 22, 2016 · US
Porous material, manufacturing method of the same, and honeycomb structure
US-9289707-B2 · Mar 22, 2016 · US
Powder composition for tin oxide monolithic refractory, method for producing tin oxide monolithic refractory, glass melting furnace and waste melting furnace
US-2016075605-A1 · Mar 17, 2016 · US
Zirconia sintered body, zirconia composition, zirconia pre-sintered body and preparing method thereof, and dental prosthesis
US-2016074142-A1 · Mar 17, 2016 · US
Filter comprising combined soot oxidation and NH3-SCR catalyst
US-9283519-B2 · Mar 15, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C04B2235/3218?
- CPC C04B2235/3218 is the Cooperative Patent Classification code for “Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol.”
- How many patents are filed under CPC C04B2235/3218 (Aluminium (oxy)hydroxides, e.g. boehmite, gibbsite, alumina sol)?
- Our database includes 320 publications tagged with this CPC code.
- Is patent activity under CPC C04B2235/3218 growing?
- Publication counts under this code: 19 in 2024 vs 16 in 2025 (latest complete years).