F04B 43/1215
Having no backing plate
Official title: {having no backing plate (deforming of the tube only by rollers)}
F04B43/1215 (Having no backing plate) appears on 35 US grants and 23 published applications in this corpus.
Search patents in F04B- Granted patents
- 35
- Published applications
- 23
- Assignees
- 24
- Inventors
- 58
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 3 |
| 2018 | 0 | 3 |
| 2019 | 3 | 0 |
| 2020 | 0 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Peristaltic pump14 Jul 2026US 12,680,540 B2Keurig Green Mountain, Inc.
- 3D cell washer24 Mar 2026US 12,584,474 B2Agilent Technologies, Inc.
- 3D cell washer14 May 2024US 11,982,268 B2Agilent Technologies, Inc.
- Double-roller hose pressing apparatus for peristaltic pump24 Oct 2023US 11,795,932 B2Hunan Zenithsun Technology Co., Ltd
- Linear peristaltic metering pump3 Oct 2023US 11,773,834 B2Hunan Zenithsun Technology Co., Ltd
- 3d cell washer9 Jul 2026US 2026/0194053 A1Agilent Technologies, Inc.
- Peristaltic pump20 Nov 2025US 2025/0354545 A1Keurig Green Mountain, Inc.
- 3d cell washer1 Aug 2024US 2024/0254982 A1Agilent Technologies, Inc.
- Double-roller hose pressing apparatus for peristaltic pump6 Jan 2022US 2022/0003226 A1Hunan Zenithsun Technology Co., Ltd
- Linear cleaning peristaltic metering pump6 Jan 2022US 2022/0003228 A1Hunan Zenithsun Technology Co., Ltd
Most cited
By later US patents
- Peristaltic infusion pump and disposable cassette for use therewith365US 4,537,561 AMedical Technology, Inc. · 1985
- Peristaltic dialysate solution pump107US 4,229,299 AHoechst Aktiengesellschaft · 1980
- Peristaltic pump and method for adjustable flow regulation67US 5,318,413 ABiomedical Research and Development Laboratories, Inc. · 1994
- Self regulating blood pump with controlled suction64US 5,342,182 AConstitutional Corporation of the State of Michigan · 1994
- Combined peristaltic pump and valve flow controller47US 4,218,197 ABeckman Instruments, Inc. · 1980