B68G 3/08
Preparation of bed feathers from natural feathers
Official title: Preparation of bed feathers from natural feathers {(treatment of feathers D06M19/00 takes precedence)}
B68G3/08 (Preparation of bed feathers from natural feathers) appears on 9 US grants and 11 published applications in this corpus.
Search patents in B68G- Granted patents
- 9
- Published applications
- 11
- Assignees
- 6
- Inventors
- 19
- Latest grant
- 29 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 4 | 1 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cleaning and washing down and/or feathers29 Jun 2021US 11,047,089 B2Nikwax Limited
- Thermally insulating sheet formed from a down core structure and method of fabrication16 Mar 2021US 10,946,412 B2
- Down-fill pillow construction23 Feb 2021US 10,925,418 B2
- Method and apparatus for forming a down feather sheet by heat injection16 Feb 2021US 10,919,190 B2
- Thermally insulating stretchable down feather sheet and method of fabrication5 Jul 2016US 9,380,893 B2
- Stuffing structure and manufacturing method thereof15 Sep 2022US 2022/0289555 A1Tianchen Innovative Materials Technology Co., Ltd.
- Thermally insulating sheet formed from a down core structure and method of fabrication27 May 2021US 2021/0154698 A1
- Method and apparatus for forming a down feather sheet by heat injection17 Oct 2019US 2019/0315022 A1
- Thermally insulating sheet formed from a down core structure and method of fabrication19 Sep 2019US 2019/0283078 A1
- Down-fill pillow construction20 Dec 2018US 2018/0362329 A1
Most cited
By later US patents
- Short fiber-containing down-feather wadding and process for producing the same15US 6,232,249 B12001
- Filling material and process for making same5US 7,074,242 B2United Feather & Down, Inc. · 2006
- Process and apparatus for preparing a filling material, particularly for an article giving body protection4US 4,693,917 A1987
- Thermally insulating stretchable down feather sheet and method of fabrication4US 9,380,893 B22016
- Down-fill pillow construction1US 10,925,418 B22021