B04B 7/08
Rotary bowls
Official title: Rotary bowls (centrifugal casting machines B22D)
B04B7/08 (Rotary bowls) appears on 665 US grants and 632 published applications in this corpus.
Search patents in B04B- Granted patents
- 665
- Published applications
- 632
- Assignees
- 314
- Inventors
- 1,101
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 9 | 0 |
| 1980 | 5 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 1 | 0 |
| 1984 | 10 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 6 | 0 |
| 1989 | 11 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 9 | 0 |
| 1995 | 6 | 0 |
| 1996 | 12 | 0 |
| 1997 | 11 | 0 |
| 1998 | 18 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 8 |
| 2002 | 9 | 16 |
| 2003 | 17 | 10 |
| 2004 | 11 | 17 |
| 2005 | 8 | 6 |
| 2006 | 8 | 14 |
| 2007 | 5 | 7 |
| 2008 | 9 | 10 |
| 2009 | 7 | 15 |
| 2010 | 7 | 16 |
| 2011 | 7 | 27 |
| 2012 | 18 | 23 |
| 2013 | 15 | 39 |
| 2014 | 19 | 49 |
| 2015 | 28 | 37 |
| 2016 | 29 | 27 |
| 2017 | 28 | 39 |
| 2018 | 35 | 37 |
| 2019 | 33 | 30 |
| 2020 | 24 | 33 |
| 2021 | 35 | 32 |
| 2022 | 20 | 43 |
| 2023 | 20 | 24 |
| 2024 | 35 | 34 |
| 2025 | 26 | 22 |
| 2026 | 12 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid processing fixture and device6 Oct 2026US 12,752,221 B2Triple Win Technology(Shenzhen) Co. Ltd.
- Separator insert and separator22 Sep 2026US 12,741,288 B2GEA Westfalia Separator Group GmbH
- Integrated autotransfusion bowl and fluid line organizer4 Aug 2026US 12,697,421 B2Sorin Group Italia S.r.l.
- Bi-directional filter19 May 2026US 12,629,620 B2Combipro AS
- Separator insert, separator and method for exchanging a separator insert19 May 2026US 12,629,699 B2GEA Westfalia Separator Group GmbH
- A centrifugal separator1 Oct 2026US 2026/0295600 A1Alfa Laval Corporate AB
- Centrifugal separator having an improved flow and system comprising such a centrifugal separator24 Sep 2026US 2026/0284674 A1FLSmidth A/S
- Separator insert, separator and method for exchanging a separator insert27 Aug 2026US 2026/0249308 A1GEA Westfalia Separator Group GmbH
- Material separation disc and material separation device comprising the same27 Aug 2026US 2026/0249310 A1Ctcells, Inc.
- Centrifugal separator20 Aug 2026US 2026/0241393 A1Alfa Laval Corporate AB
Most cited
By later US patents
- Enhanced yield platelet collection systems and methods216US 5,370,802 ABaxter International Inc. · 1994
- Centrifugation pheresis system202US 4,834,890 ABaxter International Inc. · 1989
- Time based interface detection systems for blood processing apparatus186US 5,316,667 ABaxter International Inc. · 1994
- Rotary centrifuge bowl and seal for blood processing175US 5,045,048 AHaemonetics Corporation · 1991
- Plasmapheresis centrifuge bowl164US 4,983,158 AHaemonetics Corporation · 1991