Assignee
SOUTHWEST ELECTRIC CO
US·12 granted patents·440 citations·filing 1974–2022
Top patents by PatentIndex Score
12 records- 0190US5422550AControl of multiple motors, including motorized pumping system and methodSOUTHWEST ELECTRIC CO·Filed 1993·Granted Jun 6, 1995·131 cites·32 claims
- 0290US5130628ATransformer providing two multiple phase outputs out of phase with each other, and pumping system using the sameSOUTHWEST ELECTRIC CO·Filed 1991·Granted Jul 14, 1992·98 cites·15 claims
- 0383US5130616AMotor control system and components thereofSOUTHWEST ELECTRIC CO·Filed 1990·Granted Jul 14, 1992·32 cites·37 claims
- 0477US4868481AApparatus and method for balancing electrical currents in a multiple-phase systemSOUTHWEST ELECTRIC CO·Filed 1988·Granted Sep 19, 1989·31 cites·21 claims
- 0576US5322971AMotor control system and components thereofSOUTHWEST ELECTRIC CO·Filed 1993·Granted Jun 21, 1994·24 cites·4 claims
- 0676US5216356AShielded three phase transformer with tertiary windingSOUTHWEST ELECTRIC CO·Filed 1992·Granted Jun 1, 1993·27 cites·8 claims
- 0768US5005100ATransient-filtered transformerSOUTHWEST ELECTRIC CO·Filed 1989·Granted Apr 2, 1991·23 cites·15 claims
- 0863US6169674B1Transformer, system and method to control harmonic distortionSOUTHWEST ELECTRIC CO·Filed 1998·Granted Jan 2, 2001·31 cites·13 claims
- 0957US3934326AElectric meter installing deviceSOUTHWEST ELECTRIC CO·Filed 1974·Granted Jan 27, 1976·12 cites·24 claims
- 1055US5449991AMotor control system and apparatus for providing desired three-phase voltage therein using a main transformer energized through an autotransformerSOUTHWEST ELECTRIC CO·Filed 1993·Granted Sep 12, 1995·13 cites·17 claims
- 1153US12260985B2Three-phase multi-tap balancing distribution transformerSOUTHWEST ELECTRIC CO·Filed 2022·Granted Mar 25, 2025·0 cites·20 claims
- 1251US5079499ATransformer providing two multiple phase outputs out of phase with each other, and pumping system using the sameSOUTHWEST ELECTRIC CO·Filed 1990·Granted Jan 7, 1992·18 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →