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A47L 9/1641

For parallel flow

Official title: {for parallel flow}

A47L9/1641 (For parallel flow) appears on 612 US grants and 781 published applications in this corpus.

Search patents in A47L

Granted patents: 612
Published applications: 781
Assignees: 90
Inventors: 554
Latest grant: 29 Sep 2026

Filings by year

A47L 9/1641: granted patents and published applications per publication year
Year	Granted patents	Published applications
2001	5	0
2002	4	3
2003	3	2
2004	5	10
2005	2	16
2006	6	40
2007	8	40
2008	17	27
2009	32	43
2010	37	31
2011	34	10
2012	20	17
2013	14	18
2014	18	19
2015	25	25
2016	15	45
2017	19	63
2018	28	62
2019	67	61
2020	78	52
2021	37	39
2022	36	29
2023	37	40
2024	42	38
2025	13	25
2026	10	26

By publication year. 2026 runs to 8 Oct.

Recent patents

Surface cleaning apparatus29 Sep 2026US 12,745,882 B2Omachron Intellectual Property Inc.
Surface cleaning apparatus8 Sep 2026US 12,727,731 B2Omachron Intellectual Property Inc.
Vacuum cleaner1 Sep 2026US 12,721,489 B2Techtronic Floor Care Technology Limited
Surface cleaning apparatus14 Jul 2026US 12,678,001 B2Omachron Intellectual Property Inc.
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Most cited

By later US patents