C04B 18/243
Waste from paper processing or recycling paper
Official title: {Waste from paper processing or recycling paper, e.g. de-inking sludge (burned paper processing waste C04B18/10)}
C04B18/243 (Waste from paper processing or recycling paper) appears on 16 US grants and 10 published applications in this corpus.
Search patents in C04B- Granted patents
- 16
- Published applications
- 10
- Assignees
- 13
- Inventors
- 32
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 2 |
| 2025 | 2 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Masonry material utilizing recycled construction and demolition waste7 Apr 2026US 12,595,208 B2Washington State University
- Method of pressure-pumping ready-mixed concrete19 Aug 2025US 12,391,614 B2Take Cite Co., Ltd.
- Fiber cement products and methods for the production thereof29 Jul 2025US 12,371,373 B2Etex Services NV
- Masonry material utilizing recycled construction and demolition waste10 Oct 2023US 11,780,774 B2Washington State University
- Composition for use in building construction20 Oct 2020US 10,807,909 B2Laboratori Archa S.R.L.
- Fiber cement products and methods for the production thereof4 Dec 2025US 2025/0368572 A1Etex Services NV
- Method of pressure-pumping ready-mixed concrete15 Aug 2024US 2024/0270639 A1Take Cite Co., Ltd.
- Novel masonry material utilizing recycled construction & demolition waste11 Jan 2024US 2024/0010558 A1Washington State University
- Degradable materials containing waste paper products5 Oct 2023US 2023/0312417 A1Pact Renewables Pty Ltd
- Improved fiber cement products and methods for the production thereof20 Oct 2022US 2022/0332643 A1Etex Services NV
Most cited
By later US patents
- Insulating and filler material comprising cellulose fibers and clay, and method of making same from paper-making waste55US 4,356,060 A1982
- Process for forming aggregate; and product55US 5,500,044 AGreengrove Corporation · 1996
- Process for forming aggregate; and product44US 5,669,969 AGreengrove Corporation · 1997
- Method for modifying papermaking sludge and products made from modified papermaking sludge25US 5,795,377 AKimberly-Clark Worldwide, Inc. · 1998
- Cementitious composite that includes delignified cellulosic material and process of making it22US 5,196,061 A1993