Honeycomb filter
US-2017354912-A1 · Dec 14, 2017 · US
of the whole honeycomb or segments
of the whole honeycomb or segments · 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 | B01D46/2455 |
| Official title | {of the whole honeycomb or segments} |
| Display label | of the whole honeycomb or segments |
| Total patents | 210 |
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 | 21 |
| 2016 | 21 |
| 2017 | 25 |
| 2018 | 19 |
| 2019 | 27 |
| 2020 | 29 |
| 2021 | 22 |
| 2022 | 17 |
| 2023 | 13 |
| 2024 | 11 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Honeycomb structure
US-2017355645-A1 · Dec 14, 2017 · US
Plugged honeycomb structure
US-2017282109-A1 · Oct 5, 2017 · US
Binary catalyst based selective catalytic reduction filter
US-9764287-B2 · Sep 19, 2017 · US
Honeycomb structure
US-2017252737-A1 · Sep 7, 2017 · US
Ceramic honeycomb structure and its production method, and honeycomb-molding die
US-2017216747-A1 · Aug 3, 2017 · US
Honeycomb filter
US-2017197168-A1 · Jul 13, 2017 · US
Honeycomb catalyst body
US-9695724-B2 · Jul 4, 2017 · US
Catalyzed particulate filter
US-2017165610-A1 · Jun 15, 2017 · US
Honeycomb Filter
US-2017159521-A1 · Jun 8, 2017 · US
Grinding method of honeycomb structure
US-9662759-B2 · May 30, 2017 · US
Binary catalyst based selective catalytic reduction filter
US-2017128882-A1 · May 11, 2017 · US
Honeycomb filter
US-2017130626-A1 · May 11, 2017 · US
Exhaust gas purification system of internal combustion engine having turbocharger
US-2017107885-A1 · Apr 20, 2017 · US
Honeycomb filter
US-2017072358-A1 · Mar 16, 2017 · US
Exhaust gas treating device, temperature raising method of catalyst, regeneration method of honeycomb structure, and ash removing method
US-2017065918-A1 · Mar 9, 2017 · US
Honeycomb structural body
US-9586195-B2 · Mar 7, 2017 · US
Plugged honeycomb structure
US-9555359-B2 · Jan 31, 2017 · US
Honeycomb structure
US-9518494-B2 · Dec 13, 2016 · US
Honeycomb structure
US-9470131-B2 · Oct 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D46/2455?
- CPC B01D46/2455 is the Cooperative Patent Classification code for “of the whole honeycomb or segments.”
- How many patents are filed under CPC B01D46/2455 (of the whole honeycomb or segments)?
- Our database includes 210 publications tagged with this CPC code.
- Is patent activity under CPC B01D46/2455 growing?
- Publication counts under this code: 11 in 2024 vs 3 in 2025 (latest complete years).