B04B 11/04
Periodical feeding or discharging
Official title: Periodical feeding or discharging; Control arrangements therefor
B04B11/04 (Periodical feeding or discharging) appears on 386 US grants and 357 published applications in this corpus.
Search patents in B04B- Granted patents
- 386
- Published applications
- 357
- Assignees
- 208
- Inventors
- 708
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 7 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 2 |
| 2002 | 12 | 5 |
| 2003 | 6 | 7 |
| 2004 | 7 | 14 |
| 2005 | 7 | 12 |
| 2006 | 11 | 6 |
| 2007 | 5 | 8 |
| 2008 | 3 | 4 |
| 2009 | 5 | 6 |
| 2010 | 3 | 12 |
| 2011 | 7 | 7 |
| 2012 | 7 | 14 |
| 2013 | 10 | 20 |
| 2014 | 8 | 20 |
| 2015 | 17 | 24 |
| 2016 | 19 | 22 |
| 2017 | 11 | 13 |
| 2018 | 21 | 14 |
| 2019 | 19 | 30 |
| 2020 | 18 | 26 |
| 2021 | 21 | 18 |
| 2022 | 13 | 23 |
| 2023 | 16 | 13 |
| 2024 | 15 | 18 |
| 2025 | 18 | 11 |
| 2026 | 5 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Centrifugal piston and centrifugal separation device having same8 Sep 2026US 12,728,427 B2
- Centrifugal separators and separation methods providing intermediate material ejection control28 Jul 2026US 12,691,457 B2Empirical Innovations, Inc.
- Baffle assemblies, nozzles, and related methods for solid discharges of centrifuge separators16 Jun 2026US 12,654,176 B2Derrick Corporation
- Centrifuge rotor, centrifuge or ultracentrifuge comprising centrifuge rotor, sample retraction needle, method for in-situ sample retraction from a centrifuge tube16 Jun 2026US 12,654,177 B2Sartorius BIA Separations d.o.o.
- Centrifugal separation apparatus and centrifugal separation method17 Feb 2026US 12,551,904 B2Aoi Seiki Co., Ltd.
- Centrifuge syringe1 Oct 2026US 2026/0295575 A1Hubertus Goller Gesellschaft M.B.H.
- Cell Centrifuge, Method, Controller, and Medium6 Aug 2026US 2026/0225114 A1Shenzhen Cellbri Bio-Innovation Technology Co., Ltd.
- Separation of minerals by specific gravity9 Jul 2026US 2026/0192309 A1Good Earth IP Holdings, LLC
- Centrifuge system for separating cells in suspension26 Feb 2026US 2026/0054272 A1Pneumatic Scale Corporation
- Managing peripheral blood cells29 Jan 2026US 2026/0027281 A1Sino-Biocan (Shanghai) Biotech Ltd.
Most cited
By later US patents
- Automated sample processing system including automatic centrifuge device289US 6,060,022 ABeckman Coulter, Inc. · 2000
- Automated sample processing system107US 7,141,213 B1Beckman Coulter, Inc. · 2006
- Automatic sample container handling centrifuge and a rotor for use therein93US 5,551,941 AE. I. Du Pont de Nemours and Company · 1996
- Receiving device and receiving means, transfer device, and workstation and method for their operation73US 6,458,324 B1Tecan Trading AG · 2002
- Two-stage cell wash process controlled by optical sensor61US 5,478,479 AHaemonetics Corporation · 1995