F01N 2330/08
Granular material
F01N2330/08 (Granular material) appears on 115 US grants and 33 published applications in this corpus.
Search patents in F01N- Granted patents
- 115
- Published applications
- 33
- Assignees
- 68
- Inventors
- 249
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 6 | 0 |
| 1978 | 7 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 2 |
| 2004 | 1 | 7 |
| 2005 | 4 | 0 |
| 2006 | 3 | 1 |
| 2007 | 2 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 6 |
| 2019 | 2 | 4 |
| 2020 | 6 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 3 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Honeycomb structure and exhaust gas purifying device13 Jan 2026US 12,521,705 B2NGK Insulators, Ltd.
- Exhaust gas purification catalyst composition and exhaust gas purification catalyst16 Jan 2024US 11,872,540 B2Mitsui Mining & Smelting Co., Ltd.
- Combustion system15 Dec 2020US 10,865,684 B2The Chugoku Electric Power Co., Inc.
- Powder for catalysts and catalyst for exhaust gas purification22 Sep 2020US 10,780,423 B2Mitsui Mining & Smelting Co., Ltd.
- Method for recycling denitration catalyst8 Sep 2020US 10,767,535 B2The Chugoku Electric Power Co., Inc.
- Honeycomb structure20 Aug 2026US 2026/0241375 A1NGK Insulators, Ltd.
- Honeycomb structure and exhaust gas purifying device19 Jan 2023US 2023/0016907 A1NGK Insulators, Ltd.
- Exhaust gas purification catalyst composition and exhaust gas purification catalyst22 Dec 2022US 2022/0401923 A1Mitsui Mining & Smelting Co., Ltd.
- Honeycomb structure and exhaust gas purifying device21 Apr 2022US 2022/0120203 A1NGK Insulators, Ltd.
- Honeycomb structure and exhaust gas purifying device21 Apr 2022US 2022/0120204 A1NGK Insulators, Ltd.
Most cited
By later US patents
- Method and apparatus for reducing nitrogen oxides from internal combustion engine207US 5,272,871 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1993
- Diesel particulate filter unit and regeneration control method of the same100US 6,622,480 B2Isuzu Motors Limited · 2003
- Exhaust gas purification system for an internal combustion engine99US 5,331,809 AToyota Jidosha Kabushiki Kaisha · 1994
- High temperature nanofilter, system and method99US 7,052,532 B13M Innovative Properties Company · 2006
- Multi-chambered air cleaner74US 4,578,091 A1986