D21B 1/322
Coated with synthetic materials
Official title: {coated with synthetic materials}
D21B1/322 (Coated with synthetic materials) appears on 39 US grants and 11 published applications in this corpus.
Search patents in D21B- Granted patents
- 39
- Published applications
- 11
- Assignees
- 28
- Inventors
- 78
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 3 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 2 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for recovering fiber from screening reject and fine sorting pre-processing device for use in method for recovering fiber8 Apr 2025US 12,270,150 B2Taizen Co., Ltd.
- Method for separating fibers28 Dec 2021US 11,208,762 B2Repulping Technology GmbH & Co. KG
- Method for recovering pulp fiber from used hygiene product12 May 2020US 10,646,386 B2Unicharm Corporation
- Device and method for processing composite materials containing fibers10 Apr 2018US 9,938,661 B2Meri Environmental Solutions GmbH
- Method for recycling waste material with reduced odor emission31 May 2016US 9,353,476 B2Georgia-Pacific Containerboard LLC
- A method for manufacturing a purified fiber fraction from used beverage carton9 Jan 2025US 2025/0012011 A1Stora Enso OYJ
- Method for recovering fiber from screening reject and fine sorting pre-processing device for use in method for recovering fiber4 Aug 2022US 2022/0243394 A1Taizen Co., Ltd.
- Method for separating fibers18 Jun 2020US 2020/0190736 A1Repulping Technology GmbH & Co. KG
- Method for recovering pulp fiber from used hygiene product3 Jan 2019US 2019/0000698 A1Unicharm Corporation
- Device and Method for Processing Composite Materials Containing Fibers4 Aug 2016US 2016/0222585 A1Meri Environmental Solutions GmbH
Most cited
By later US patents
- Method and apparatus for preparing paper-containing and plastic-containing waste materials for component fraction separation65US 4,974,781 AThe Placzek Family Trust · 1990
- Recycling plastic coated paper product waste58US 5,084,135 AAdvanced Environmental Recycling Technologies, Inc. · 1992
- Method for recycling plastic coated paper product waste and polymeric film52US 5,277,758 AAdvanced Environmental Recycling Technologies, Inc. · 1994
- Process and apparatus for the recovery of cellulose fibers from paper-plastic mixtures51US 4,440,635 A1984
- Method for recycling polymeric film47US 5,268,074 AAdvanced Environmental Recycling Technologies, Inc. · 1993