B04B 5/0414
Comprising test tubes
Official title: {comprising test tubes}
B04B5/0414 (Comprising test tubes) appears on 596 US grants and 475 published applications in this corpus.
Search patents in B04B- Granted patents
- 596
- Published applications
- 475
- Assignees
- 279
- Inventors
- 1,017
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 12 | 0 |
| 1978 | 14 | 0 |
| 1979 | 8 | 0 |
| 1980 | 16 | 0 |
| 1981 | 11 | 0 |
| 1982 | 12 | 0 |
| 1983 | 11 | 0 |
| 1984 | 13 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 14 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 9 | 0 |
| 1994 | 13 | 0 |
| 1995 | 9 | 0 |
| 1996 | 18 | 0 |
| 1997 | 7 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 10 | 0 |
| 2001 | 7 | 1 |
| 2002 | 10 | 9 |
| 2003 | 6 | 22 |
| 2004 | 17 | 20 |
| 2005 | 14 | 13 |
| 2006 | 14 | 12 |
| 2007 | 12 | 9 |
| 2008 | 6 | 13 |
| 2009 | 3 | 5 |
| 2010 | 9 | 17 |
| 2011 | 4 | 20 |
| 2012 | 20 | 15 |
| 2013 | 6 | 18 |
| 2014 | 5 | 17 |
| 2015 | 18 | 24 |
| 2016 | 14 | 29 |
| 2017 | 15 | 23 |
| 2018 | 17 | 17 |
| 2019 | 21 | 24 |
| 2020 | 17 | 26 |
| 2021 | 10 | 36 |
| 2022 | 17 | 25 |
| 2023 | 21 | 25 |
| 2024 | 33 | 26 |
| 2025 | 12 | 19 |
| 2026 | 6 | 10 |
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
- Apparatus and process for the automated manufacturing of genetically engineered cells from biological fluids21 Jul 2026US 12,686,845 B2Limula SA
- 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.
- Portable centrifuge device and method of use24 Feb 2026US 12,558,463 B2ABC Med Tech Corp.
- 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.
- Centrifuge and method for operating this centrifuge27 Aug 2026US 2026/0249309 A1Andreas Hettich GmbH & Co. KG
- Solid-body separator for separating at least two constituents of a bodily liquid23 Jul 2026US 2026/0208183 A1
- Micro-centrifuge rotor for h igh-speed applications23 Jul 2026US 2026/0208209 A1Fiberlite Centrifuge, LLC
- Bioreactor Systems and Methods of Operating Same25 Jun 2026US 2026/0176561 A1National Resilience, Inc.
Most cited
By later US patents
- Method and apparatus for determining distribution of fluids317US 4,671,102 AShell Oil Company · 1987
- Method and apparatus for assaying liquid materials213US 3,953,172 AUnion Carbide Corporation · 1976
- Method for producing platelet rich plasma and/or platelet concentrate173US 6,398,972 B1Harvest Technologies Corporation · 2002
- Method and apparatus for use in preparation of fibrinogen from a patient's blood154US 4,714,457 A1987
- Material layer volume determination129US 4,077,396 A1978