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F01K 3/006

Accumulators and steam compressors

Official title: {Accumulators and steam compressors}

F01K3/006 (Accumulators and steam compressors) appears on 29 US grants and 43 published applications in this corpus.

Search patents in F01K

Granted patents: 29
Published applications: 43
Assignees: 25
Inventors: 77
Latest grant: 7 Jul 2026

Filings by year

F01K 3/006: granted patents and published applications per publication year
Year	Granted patents	Published applications
1978	1	0
1979	0	0
1980	0	0
1981	0	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	1
2007	0	1
2008	1	1
2009	0	2
2010	0	0
2011	2	2
2012	1	1
2013	1	1
2014	0	3
2015	1	2
2016	0	4
2017	2	0
2018	0	2
2019	2	3
2020	4	1
2021	1	1
2022	0	2
2023	3	5
2024	7	4
2025	1	4
2026	2	3

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

Recent patents

System for compressing steam from a nuclear steam supply system to operate a turbogenerator7 Jul 2026US 12,676,248 B2Holtec International
Systems and methods for carbon dioxide-based energy storage and power generation10 Mar 2026US 12,571,346 B2EarthEn Energy Inc.
Thermal energy storage system for simple and combined cycle power generation25 Nov 2025US 12,480,719 B2Rondo Energy, Inc.
Systems and methods for carbon dioxide-based energy storage and power generation24 Dec 2024US 12,173,647 B2EarthEn Energy Inc.
Energy storage plant and process24 Dec 2024US 12,173,649 B2Energy Dome S.P.A.

Most cited

By later US patents