B01D 2255/905
Catalysts having a gradually changing coating
B01D2255/905 (Catalysts having a gradually changing coating) appears on 17 US grants and 26 published applications in this corpus.
Search patents in B01D- Granted patents
- 17
- Published applications
- 26
- Assignees
- 14
- Inventors
- 85
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 1 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 4 |
| 2020 | 1 | 6 |
| 2021 | 3 | 0 |
| 2022 | 3 | 2 |
| 2023 | 0 | 2 |
| 2024 | 0 | 3 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Emission control catalyst article with PGM-gradient architecture17 Mar 2026US 12,576,395 B2BASF Mobile Emissions Catalysts LLC
- Emmission control catalyst article with enriched PGM zone19 Aug 2025US 12,390,764 B2BASF Mobile Emissions Catalysts LLC
- Selective catalytic reduction articles and systems20 Sep 2022US 11,448,110 B2BASF SE
- Honeycomb catalytic converter12 Apr 2022US 11,298,685 B2Ibiden Co., Ltd.
- Honeycomb catalytic converter12 Apr 2022US 11,298,686 B2Ibiden Co., Ltd.
- Particulate filter having a centralized-distributed pgm and process for preparing the same26 Dec 2024US 2024/0424444 A1BASF SE
- Catalytically active particle filter with a high degree of filtration efficiency4 Apr 2024US 2024/0109060 A1Umicore AG & Co. KG
- Particulate Filter Having A Centralized-Distributed Functional Material Layer And Process For Preparing The Same4 Jan 2024US 2024/0001271 A1BASF SE
- An emission control catalyst article with pgm-gradient architecture11 May 2023US 2023/0147850 A1BASF SE
- An emmission control catalyst article with enriched pgm zone19 Jan 2023US 2023/0016066 A1BASF SE
Most cited
By later US patents
- Exhaust gas purification device18US 10,357,744 B2Cataler Corporation · 2019
- Honeycomb catalytic converter5US 11,298,685 B2Ibiden Co., Ltd. · 2022
- Honeycomb catalytic converter5US 11,298,686 B2Ibiden Co., Ltd. · 2022
- Exhaust gas cleaning catalyst2US 10,369,520 B2Cataler Corporation · 2019
- Catalytic articles2US 10,722,876 B2BASF SE · 2020