H02P 27/00

Arrangements or methods for the control of ac motors characterised by the

Official title: Arrangements or methods for the control of AC motors characterised by the kind of supply voltage (of two or more motors H02P5/00; of synchronous motors with electronic commutators H02P6/00; of DC motors H02P7/00; of stepping motors H02P8/00)

H02P27/00 (Arrangements or methods for the control of ac motors characterised by the) appears on 6,740 US grants and 7,456 published applications in this corpus.

Search patents in H02P

Granted patents: 6,740
Published applications: 7,456
Assignees: 1,532
Inventors: 11,050
Latest grant: 6 Oct 2026

Filings by year

H02P 27/00: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	17	0
1977	15	0
1978	23	0
1979	8	0
1980	12	0
1981	25	0
1982	22	0
1983	15	0
1984	35	0
1985	14	0
1986	23	0
1987	18	0
1988	20	0
1989	17	0
1990	14	0
1991	20	0
1992	14	0
1993	16	0
1994	11	0
1995	17	0
1996	10	0
1997	15	0
1998	24	0
1999	31	0
2000	24	0
2001	24	10
2002	26	25
2003	28	29
2004	21	32
2005	18	52
2006	57	52
2007	39	66
2008	45	70
2009	31	88
2010	59	119
2011	81	123
2012	103	132
2013	117	206
2014	148	228
2015	217	276
2016	214	383
2017	404	626
2018	477	560
2019	590	639
2020	586	651
2021	553	562
2022	603	622
2023	492	565
2024	515	627
2025	553	434
2026	279	279

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

Arrangements or methods for the control of ac motors characterised by the

Filings by year

Subgroups

Recent patents

Most cited