B01L 3/021

Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids

Official title: {Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids}

B01L3/021 (Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids) appears on 1,676 US grants and 1,837 published applications in this corpus.

Search patents in B01L

Granted patents: 1,676
Published applications: 1,837
Assignees: 838
Inventors: 3,386
Latest grant: 6 Oct 2026

Filings by year

B01L 3/021: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	18	0
1977	21	0
1978	20	0
1979	13	0
1980	10	0
1981	18	0
1982	9	0
1983	13	0
1984	25	0
1985	13	0
1986	18	0
1987	14	0
1988	13	0
1989	14	0
1990	10	0
1991	20	0
1992	18	0
1993	11	0
1994	15	0
1995	18	0
1996	15	0
1997	12	0
1998	16	0
1999	21	0
2000	17	0
2001	21	10
2002	26	44
2003	26	53
2004	29	54
2005	27	53
2006	22	52
2007	20	50
2008	36	52
2009	24	65
2010	34	51
2011	39	57
2012	48	54
2013	36	95
2014	53	69
2015	54	76
2016	79	95
2017	65	91
2018	75	103
2019	80	105
2020	77	120
2021	84	106
2022	78	113
2023	74	75
2024	70	76
2025	72	69
2026	35	49

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids

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