D01G 23/02
Hoppers
Official title: Hoppers; Delivery shoots
D01G23/02 (Hoppers) appears on 150 US grants and 30 published applications in this corpus.
Search patents in D01G- Granted patents
- 150
- Published applications
- 30
- Assignees
- 49
- Inventors
- 186
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 2 | 0 |
| 1987 | 9 | 0 |
| 1988 | 8 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 14 | 1 |
| 2002 | 4 | 4 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 1 | 1 |
| 2008 | 3 | 1 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 0 |
| 2014 | 1 | 4 |
| 2015 | 4 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 3 |
| 2019 | 1 | 1 |
| 2020 | 3 | 2 |
| 2021 | 1 | 2 |
| 2022 | 0 | 1 |
| 2023 | 3 | 1 |
| 2024 | 0 | 1 |
| 2025 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Fiber preparation machine20 May 2025US 12,305,311 B2Maschinenfabrik Rieter AG
- Saw gin stand safety assembly25 Mar 2025US 12,258,681 B2
- Feed device of a fleece-forming machine22 Aug 2023US 11,732,386 B2Oskar Dilo Maschinenfabrik KG
- Loading station for micronaire testing6 Jun 2023US 11,668,693 B2Uster Technologies AG
- Reinforcing fiber mat manufacturing apparatus31 Jan 2023US 11,566,350 B2Toray Industries, Inc.
- Saw Gin Stand Safety Assembly22 Feb 2024US 2024/0060214 A1Ford Gin Services LLC
- Feeding method of a carding machine in order to obtain a blended yarn, yarn and fabric obtain with it23 Feb 2023US 2023/0056331 A1Lightowlers Yarns Limited
- Fiber preparation machine10 Feb 2022US 2022/0042212 A1Maschinenfabrik Rieter AG
- Loading station for micronaire testing30 Sep 2021US 2021/0302406 A1Uster Technologies AG
- Method and apparatus for selectively injecting fibre material from multiple chambers into a single chamber2 Sep 2021US 2021/0269946 A1
Most cited
By later US patents
- Material feeding apparatus using pressurized air50US 4,978,252 A1990
- Loose material combining and depositing apparatus36US 5,647,696 A1997
- Fiber feeding apparatus for carding machines and the like31US 4,240,180 ARando Machine Corporation · 1980
- Fiber feeding apparatus with a pivoted air exhaust wall portion26US 4,520,530 A1985
- Solid-state sliver sensor and auto-leveler for textile machine26US 6,118,082 A2000