D01G

Preliminary treatment of fibres

Official title: PRELIMINARY TREATMENT OF FIBRES, e.g. FOR SPINNING (winding or unwinding, conducting or guiding laps, webs, slivers or rovings in general, sliver or roving cans, depositing in sliver or roving cabs B65H; preparation of fibres for paper-making D21)

D01G (Preliminary treatment of fibres) appears on 2,212 US grants and 965 published applications in this corpus.

Search patents in D01G

Granted patents: 2,212
Published applications: 965
Assignees: 715
Inventors: 2,658
Latest grant: 6 Oct 2026

Filings by year

D01G: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	61	0
1977	48	0
1978	56	0
1979	44	0
1980	52	0
1981	58	0
1982	36	0
1983	48	0
1984	43	0
1985	70	0
1986	44	0
1987	51	0
1988	49	0
1989	70	0
1990	77	0
1991	111	0
1992	76	0
1993	57	0
1994	67	0
1995	55	0
1996	47	0
1997	46	0
1998	50	0
1999	41	0
2000	55	0
2001	71	20
2002	46	42
2003	46	48
2004	28	44
2005	25	28
2006	32	42
2007	17	48
2008	30	38
2009	28	45
2010	47	30
2011	36	23
2012	15	23
2013	21	40
2014	18	34
2015	21	32
2016	17	53
2017	35	56
2018	36	38
2019	49	47
2020	24	27
2021	20	34
2022	28	41
2023	29	30
2024	32	36
2025	30	29
2026	19	37

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

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