B65H 1/20
Controlled by weight of pile
Official title: controlled by weight of pile; Floating arrangements
B65H1/20 (Controlled by weight of pile) appears on 23 US grants and 20 published applications in this corpus.
Search patents in B65H- Granted patents
- 23
- Published applications
- 20
- Assignees
- 18
- Inventors
- 63
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 2 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 1 |
| 2019 | 2 | 2 |
| 2020 | 1 | 2 |
| 2021 | 0 | 2 |
| 2022 | 4 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Paper feed system10 Mar 2026US 12,570,488 B2
- Paper feeding apparatus19 Aug 2025US 12,391,498 B2
- Sheet feeding apparatus and image forming apparatus17 Sep 2024US 12,091,269 B2Ricoh Company, Ltd.
- Sheet guiding device and image forming apparatus incorporating the sheet guiding device27 Dec 2022US 11,535,467 B2Ricoh Company, Ltd.
- Sheet accommodating apparatus, image forming system, and extension unit21 Jun 2022US 11,365,075 B2FUJIFILM Business Innovation Corp.
- Paper feeding apparatus3 Oct 2024US 2024/0327147 A1A4 House Co., Ltd.
- Paper feed system14 Mar 2024US 2024/0083700 A1A4 House Co., Ltd.
- Sheet feeding apparatus and image forming apparatus25 May 2023US 2023/0159289 A1Ricoh Company, Ltd.
- Sheet accommodating apparatus, image forming system, and extension unit4 Mar 2021US 2021/0061594 A1Fuji Xerox Co., Ltd.
- Sheet guiding device and image forming apparatus incorporating the sheet guiding device4 Feb 2021US 2021/0032054 A1Ricoh Company, Ltd.
Most cited
By later US patents
- Apparatus for detecting the flotation level in an air supported sheet separating and feeding device20US 4,397,459 AXerox Corporation · 1983
- Sheet supplying apparatus with weight detection feature12US 5,951,002 ACanon Kabushiki Kaisha · 1999
- Paper feeding apparatus of an image forming apparatus and control method thereof12US 7,523,930 B2Samsung Electronics Co., Ltd. · 2009
- Paper tray with leaf spring9US 5,005,820 AInternational Business Machines Corporation · 1991
- Paper feeding device and method9US 5,758,250 ARicoh Company, Ltd. · 1998