C04B 38/0675
Vegetable refuse
Official title: {Vegetable refuse; Cellulosic materials, e.g. wood chips, cork, peat, paper}
C04B38/0675 (Vegetable refuse) appears on 42 US grants and 41 published applications in this corpus.
Search patents in C04B- Granted patents
- 42
- Published applications
- 41
- Assignees
- 37
- Inventors
- 115
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 3 |
| 2007 | 0 | 5 |
| 2008 | 0 | 1 |
| 2009 | 2 | 3 |
| 2010 | 1 | 0 |
| 2011 | 4 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 2 | 1 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 2 | 4 |
| 2021 | 0 | 3 |
| 2022 | 1 | 4 |
| 2023 | 1 | 1 |
| 2024 | 4 | 4 |
| 2025 | 1 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Porous ceramics and method for producing porous ceramics23 Dec 2025US 12,503,406 B2Chiba Institute of Technology
- Sintering process for electrical feedthroughs10 Dec 2024US 12,162,804 B2Heraeus Deutschland GmbH & Co. KG
- Preparation method of fly ash-based ceramic membrane support27 Aug 2024US 12,071,377 B2
- Multicolor light-storing ceramic for fire-protection indication and preparation method thereof9 Jul 2024US 12,030,817 B2Jiangsu Normal University
- Raw material for producing a refractory product, a use of this raw material, and a refractory product comprising a raw material of this kind14 May 2024US 11,981,609 B2Refractory Intellectual Property GmbH & Co.KG
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216665 A1Sumitomo Chemical Company, Limited
- Porous ceramic layer, porous ceramic layered body and separation membrane30 Jul 2026US 2026/0216666 A1Sumitomo Chemical Company, Limited
- Apparatus and process for production of dry durable carbon30 Oct 2025US 2025/0333308 A1Carbo Culture, Inc.
- Coralline ceramic material, sensor and method for obtaining said material6 Mar 2025US 2025/0074828 A1Universidad De Los Andes
- Porous atomizing core capable of releasing negative ions and method for preparing same31 Oct 2024US 2024/0360040 A1Shenzhen Huachengda Precision Industry Co. Ltd.
Most cited
By later US patents
- Ceramic process45US 5,296,180 APolyCeramics, Inc. · 1994
- Ceramic filter process36US 5,298,205 APolyCeramics, Inc. · 1994
- Method for producing fused silica with low sodium ion contamination level24US 5,395,413 ACorning Incorporated · 1995
- Method for producing porous carbon material product17US 5,916,499 ASanwa Yushi Kabushiki Kaisha · 1999
- Process for preparing a ceramic wick15US 5,458,837 APolyCeramics, Inc. · 1995