C01B 32/318
Characterised by the starting materials
Official title: characterised by the starting materials
C01B32/318 (Characterised by the starting materials) appears on 394 US grants and 549 published applications in this corpus.
Search patents in C01B- Granted patents
- 394
- Published applications
- 549
- Assignees
- 317
- Inventors
- 1,187
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 0 |
| 2002 | 1 | 5 |
| 2003 | 2 | 2 |
| 2004 | 0 | 5 |
| 2005 | 2 | 4 |
| 2006 | 3 | 5 |
| 2007 | 2 | 10 |
| 2008 | 1 | 10 |
| 2009 | 4 | 8 |
| 2010 | 7 | 15 |
| 2011 | 4 | 21 |
| 2012 | 12 | 16 |
| 2013 | 11 | 15 |
| 2014 | 12 | 17 |
| 2015 | 16 | 24 |
| 2016 | 16 | 19 |
| 2017 | 19 | 24 |
| 2018 | 18 | 16 |
| 2019 | 15 | 32 |
| 2020 | 24 | 36 |
| 2021 | 15 | 55 |
| 2022 | 23 | 38 |
| 2023 | 29 | 48 |
| 2024 | 33 | 49 |
| 2025 | 36 | 39 |
| 2026 | 33 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Activated carbon production and methods therefor22 Sep 2026US 12,741,875 B2Atlas Power Technologies Inc.
- High-carbon biogenic reagents and uses thereof1 Sep 2026US 12,723,211 B2Carbon Technology Holdings, LLC
- Method of preparing hard carbon anode material and use thereof28 Jul 2026US 12,692,164 B2Guangdong Brunp Recycling Technology Co., Ltd.
- Activated carbon and method for manufacturing the same28 Jul 2026US 12,692,165 B2LG Energy Solution, Ltd.
- Bio-oil light fraction-based bread-shaped porous activated carbon, method for preparing the same and use thereof14 Jul 2026US 12,679,735 B2Zhejiang University
- Sorbent materials for gas storage1 Oct 2026US 2026/0295557 A1Entegris, Inc.
- Method and system for producing activated carbon24 Sep 2026US 2026/0285688 A1Valmet Corporation
- Porous carbon material and preparation method thereof, and silicon-carbon material and application thereof24 Sep 2026US 2026/0290824 A1Ningde Amperex Technology Limited
- Method of forming n-doped carbon nanofoam17 Sep 2026US 2026/0274683 A1
- Dispersion, adsorbent material for pfas, environmental improvement method, powder for environmental improvement liquid, method for dispersing porous carbon material, porous carbon material, and filter10 Sep 2026US 2026/0264044 A1Sony Group Corporation
Most cited
By later US patents
- Production of highly microporous activated carbon products149US 5,416,056 AWestvaco Corporation · 1995
- Active carbon materials, process for the preparation thereof and the use thereof141US 5,242,879 AMitsubishi Gas Chemical Company, Inc. · 1993
- Ultrapure synthetic carbon materials127US 8,404,384 B2EnerG2 Technologies, Inc. · 2013
- Highly microporous carbons and process of manufacture111US 5,965,483 AWestvaco Corporation · 1999
- Filter sheet material109US 4,510,193 A1985