E01H 8/04

Essentially by non-driven elements

Official title: essentially by non-driven elements {; Clearing instruments, e.g. scraping blades or scoop plates (with oscillating or vibrating tools E01H8/06; with heated instruments or combined with melting E01H8/10; track clearing deices B61F19/06; ballast ploughs E01B27/025)}

E01H8/04 (Essentially by non-driven elements) appears on 8 US grants and 8 published applications in this corpus.

Search patents in E01H

Granted patents: 8
Published applications: 8
Assignees: 7
Inventors: 25
Latest grant: 22 Sep 2026

Filings by year

E01H 8/04: granted patents and published applications per publication year
Year	Granted patents	Published applications
1981	1	0
1982	0	0
1983	0	0
1984	0	0
1985	0	0
1986	0	0
1987	0	0
1988	0	0
1989	0	0
1990	0	0
1991	0	0
1992	0	0
1993	0	0
1994	0	0
1995	0	0
1996	0	0
1997	0	0
1998	0	0
1999	0	0
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	0	0
2008	0	0
2009	0	0
2010	0	1
2011	0	0
2012	1	0
2013	0	0
2014	0	0
2015	0	0
2016	0	5
2017	1	0
2018	3	0
2019	0	0
2020	0	0
2021	0	0
2022	0	0
2023	1	0
2024	0	1
2025	0	1
2026	1	0

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

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