E02F 3/28

With digging tools mounted on a dipper- or bucket-arm , i.e. there

Official title: with digging tools mounted on a dipper- or bucket-arm {, i.e. there is either one arm or a pair of arms}, e.g. dippers, buckets

E02F3/28 (With digging tools mounted on a dipper- or bucket-arm , i.e. there) appears on 5,946 US grants and 5,805 published applications in this corpus.

Search patents in E02F

Granted patents: 5,946
Published applications: 5,805
Assignees: 1,159
Inventors: 8,146
Latest grant: 6 Oct 2026

Filings by year

E02F 3/28: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	73	0
1977	80	0
1978	74	0
1979	49	0
1980	47	0
1981	57	0
1982	47	0
1983	47	0
1984	31	0
1985	28	0
1986	36	0
1987	43	0
1988	39	0
1989	67	0
1990	48	0
1991	46	0
1992	51	0
1993	49	0
1994	29	0
1995	44	0
1996	60	0
1997	62	0
1998	63	0
1999	74	0
2000	84	0
2001	81	25
2002	78	62
2003	79	86
2004	71	95
2005	71	96
2006	80	91
2007	60	90
2008	46	82
2009	69	106
2010	81	108
2011	86	98
2012	68	101
2013	99	177
2014	133	253
2015	196	234
2016	197	336
2017	293	383
2018	279	358
2019	341	311
2020	292	403
2021	272	383
2022	291	457
2023	265	395
2024	410	416
2025	389	372
2026	291	287

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

With digging tools mounted on a dipper- or bucket-arm , i.e. there

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