B01L 3/02
Burettes
Official title: Burettes; Pipettes
B01L3/02 (Burettes) appears on 4,323 US grants and 5,019 published applications in this corpus.
Search patents in B01L- Granted patents
- 4,323
- Published applications
- 5,019
- Assignees
- 1,866
- Inventors
- 8,502
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 37 | 0 |
| 1978 | 31 | 0 |
| 1979 | 24 | 0 |
| 1980 | 21 | 0 |
| 1981 | 31 | 0 |
| 1982 | 18 | 0 |
| 1983 | 20 | 0 |
| 1984 | 35 | 0 |
| 1985 | 22 | 0 |
| 1986 | 23 | 0 |
| 1987 | 18 | 0 |
| 1988 | 24 | 0 |
| 1989 | 27 | 0 |
| 1990 | 28 | 0 |
| 1991 | 41 | 0 |
| 1992 | 42 | 0 |
| 1993 | 39 | 0 |
| 1994 | 40 | 0 |
| 1995 | 32 | 0 |
| 1996 | 32 | 0 |
| 1997 | 30 | 0 |
| 1998 | 49 | 0 |
| 1999 | 59 | 0 |
| 2000 | 62 | 0 |
| 2001 | 86 | 52 |
| 2002 | 93 | 166 |
| 2003 | 98 | 217 |
| 2004 | 111 | 228 |
| 2005 | 115 | 210 |
| 2006 | 80 | 218 |
| 2007 | 105 | 177 |
| 2008 | 120 | 174 |
| 2009 | 84 | 179 |
| 2010 | 118 | 180 |
| 2011 | 112 | 163 |
| 2012 | 140 | 141 |
| 2013 | 115 | 197 |
| 2014 | 134 | 169 |
| 2015 | 155 | 176 |
| 2016 | 164 | 220 |
| 2017 | 153 | 203 |
| 2018 | 162 | 223 |
| 2019 | 180 | 256 |
| 2020 | 193 | 283 |
| 2021 | 201 | 271 |
| 2022 | 179 | 272 |
| 2023 | 183 | 209 |
| 2024 | 164 | 173 |
| 2025 | 177 | 151 |
| 2026 | 84 | 111 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01L 3/021Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids1,676
- B01L 3/0241Drop counters1,445
- B01L 3/0275Interchangeable or disposable dispensing tips933
- B01L 3/0289Apparatus for withdrawing or distributing predetermined quantities of fluid658
- B01L 3/0203Burettes, i.e. for withdrawing and redistributing liquids through different conduits121
- B01L 3/0282Mounted within a receptacle67
- B01L 3/0286Ergonomic aspects52
Recent patents
- Biaxially oriented thermoplastic pipette, and method and apparatus for forming same6 Oct 2026US 12,752,266 B2Corning Incorporated
- Monolithic carrier structure including fluid routing for digital dispensing6 Oct 2026US 12,752,267 B2Hewlett-Packard Development Company, L. P.
- Pipette tip adapter6 Oct 2026US 12,752,268 B2Mettler-Toledo Rainin, LLC
- Sample taking device, sample taking system and method of operating a sample taking device6 Oct 2026US 12,754,107 B2LockCon AG
- Multiplexed polymerase chain reaction in micropipette format29 Sep 2026US 12,746,539 B2Revvity Health Sciences, Inc.
- Dropper container8 Oct 2026US 2026/0305794 A1Shya Hsin Packaging Industry (China) Co., Ltd.
- Method and Device For Laboratory Formulation and Chemical Vending8 Oct 2026US 2026/0307029 A1
- Pipette tip and mounting shaft with rear venting feature8 Oct 2026US 2026/0307068 A1Integra Biosciences AG
- Dropper system with pre-positioned wiper8 Oct 2026US 2026/0307865 A1Bottle Barons, LLC
- Multichannel pipetting system8 Oct 2026US 2026/0309742 A1Gilson, Inc.
Most cited
By later US patents
- Wholly microfabricated biosensors and process for the manufacture and use thereof912US 5,200,051 AI-Stat Corporation · 1993
- Methods for fabricating microarrays of biological samples867US 5,807,522 AThe Board of Trustees of the Leland Stanford Junior University · 1998
- Method of manufacturing a plurality of uniform microfabricated sensing devices having an immobilized ligand receptor707US 5,063,081 AI-Stat Corporation · 1991
- Microscale fluid handling system662US 5,872,010 ANortheastern University · 1999
- Fully integrated miniaturized planar liquid sample handling and analysis device556US 5,571,410 AHewlett-Packard Company · 1996