B01L 2300/026
Drum counters
B01L2300/026 (Drum counters) appears on 49 US grants and 30 published applications in this corpus.
Search patents in B01L- Granted patents
- 49
- Published applications
- 30
- Assignees
- 28
- Inventors
- 83
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 0 | 1 |
| 2016 | 3 | 2 |
| 2017 | 1 | 1 |
| 2018 | 3 | 0 |
| 2019 | 0 | 6 |
| 2020 | 3 | 1 |
| 2021 | 2 | 4 |
| 2022 | 3 | 0 |
| 2023 | 3 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pipette with adjustable pipetting volume and locking system3 Feb 2026US 12,539,509 B2Eppendorf AG
- Pipette with adjustable dosing volume8 Apr 2025US 12,269,027 B2Eppendorf AG
- Systems and methods for preparing a thrombin serum13 Aug 2024US 12,059,455 B2Arthrex, Inc.
- Systems and methods for preparing a thrombin serum4 Apr 2023US 11,617,784 B2Arthrex, Inc.
- Pipette with adjustable dosing volume14 Mar 2023US 11,602,744 B2Eppendorf AG
- Pipetting device22 Jan 2026US 2026/0022994 A1Brand GmbH + Co KG
- Pipette with adjustable pipetting volume and locking system31 Aug 2023US 2023/0271174 A1Eppendorf AG
- Systems and methods for preparing a thrombin serum27 Jul 2023US 2023/0233655 A1Arthrex, Inc.
- Pipette with adjustable dosing volume25 Nov 2021US 2021/0362144 A1Eppendorf AG
- Systems and methods for preparing a thrombin serum2 Sep 2021US 2021/0268077 A1Arthrex, Inc.
Most cited
By later US patents
- Adjustable volume pipette with improved volume adjustment lock mechanism39US 5,849,248 ARainin Instrument Co., Inc. · 1998
- Adjustable volume liquid dispenser37US 4,395,921 AScientific Manufacturing Industries, Inc. · 1983
- Manual pipette36US 5,983,733 AHamilton Company · 1999
- Variable pipette35US 4,909,991 ANichiryo Co., Ltd. · 1990
- Digital titration device34US 4,086,062 AHach Chemical Company · 1978