C09K 8/50

Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole

Official title: Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole walls (compositions for consolidating loose sand or the like around wells C09K8/56)

C09K8/50 (Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole) appears on 2,704 US grants and 2,457 published applications in this corpus.

Search patents in C09K

Granted patents: 2,704
Published applications: 2,457
Assignees: 544
Inventors: 3,655
Latest grant: 29 Sep 2026

Filings by year

C09K 8/50: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	22	0
1977	22	0
1978	27	0
1979	10	0
1980	19	0
1981	21	0
1982	12	0
1983	18	0
1984	36	0
1985	24	0
1986	18	0
1987	37	0
1988	32	0
1989	42	0
1990	39	0
1991	39	0
1992	35	0
1993	30	0
1994	30	0
1995	24	0
1996	14	0
1997	19	0
1998	24	0
1999	31	0
2000	31	0
2001	27	4
2002	22	12
2003	31	49
2004	29	62
2005	23	90
2006	65	80
2007	52	71
2008	37	77
2009	42	82
2010	78	83
2011	70	107
2012	59	100
2013	62	84
2014	81	129
2015	82	98
2016	57	138
2017	101	147
2018	131	174
2019	157	185
2020	182	151
2021	185	146
2022	134	95
2023	113	82
2024	111	83
2025	78	72
2026	39	56

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

Compositions for plastering borehole walls, i.e. compositions for temporary consolidation of borehole

Filings by year

Subgroups

Recent patents

Most cited