B01L 3/5021
Test tubes specially adapted for centrifugation purposes
Official title: {Test tubes specially adapted for centrifugation purposes}
B01L3/5021 (Test tubes specially adapted for centrifugation purposes) appears on 1,069 US grants and 1,108 published applications in this corpus.
Search patents in B01L- Granted patents
- 1,069
- Published applications
- 1,108
- Assignees
- 519
- Inventors
- 1,829
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 25 | 0 |
| 1977 | 11 | 0 |
| 1978 | 14 | 0 |
| 1979 | 10 | 0 |
| 1980 | 8 | 0 |
| 1981 | 5 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 10 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 13 | 0 |
| 1990 | 12 | 0 |
| 1991 | 19 | 0 |
| 1992 | 7 | 0 |
| 1993 | 19 | 0 |
| 1994 | 14 | 0 |
| 1995 | 11 | 0 |
| 1996 | 11 | 0 |
| 1997 | 14 | 0 |
| 1998 | 25 | 0 |
| 1999 | 20 | 0 |
| 2000 | 14 | 0 |
| 2001 | 18 | 8 |
| 2002 | 24 | 28 |
| 2003 | 8 | 11 |
| 2004 | 10 | 23 |
| 2005 | 6 | 17 |
| 2006 | 10 | 19 |
| 2007 | 11 | 19 |
| 2008 | 9 | 26 |
| 2009 | 7 | 30 |
| 2010 | 19 | 48 |
| 2011 | 31 | 52 |
| 2012 | 36 | 54 |
| 2013 | 35 | 74 |
| 2014 | 23 | 91 |
| 2015 | 54 | 69 |
| 2016 | 55 | 58 |
| 2017 | 67 | 56 |
| 2018 | 58 | 56 |
| 2019 | 47 | 47 |
| 2020 | 45 | 68 |
| 2021 | 23 | 61 |
| 2022 | 51 | 52 |
| 2023 | 40 | 50 |
| 2024 | 44 | 39 |
| 2025 | 32 | 32 |
| 2026 | 16 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Medical string kit29 Sep 2026US 12,745,929 B2
- Leukocyte concentration separation device, blood collection container, and method for separating leukocytes29 Sep 2026US 12,746,542 B2Sekisui Medical Co., Ltd.
- Apparatus and process for the automated manufacturing of genetically engineered cells from biological fluids21 Jul 2026US 12,686,845 B2Limula SA
- Device and method for accelerated material extraction and detection30 Jun 2026US 12,667,840 B2Wisconsin Alumni Research Foundation
- Viral infections—treatment with convalescent plasma/serum16 Jun 2026US 12,654,163 B2Regen Lab USA LLC
- Separation basket8 Oct 2026US 2026/0307071 A1Gentueri Inc.
- Viral infections - treatment with convalescent plasma/serum24 Sep 2026US 2026/0284652 A1Regen Lab USA LLC
- Nmr tube assembly and filling method therefor27 Aug 2026US 2026/0249285 A1Norell, Inc.
- Kit for concentrating solution20 Aug 2026US 2026/0241081 A1Rev-Med, Inc.
- Penetrable gel in a reaction vessel13 Aug 2026US 2026/0233216 A1Atila Biosystems, Inc.
Most cited
By later US patents
- Methods for enriching specific cell-types by density gradient centrifugation255US 5,840,502 AActivated Cell Therapy, Inc. · 1998
- Serum separator system for centrifuge with piercable membrane208US 4,957,637 ASherwood Medical Company · 1990
- Multi-purpose syringe202US 3,937,211 AFa. Walter Sarstedt Kunststoff-Spritzgusswerk · 1976
- Apparatus and method for separating and concentrating fluids containing multiple components196US 7,179,391 B2Biomet Manufacturing, LLC · 2007
- Centrifugation syringe, system and method194US 5,577,513 AActivated Cell Therapy, Inc. · 1996