Assignee
SPELLMAN HIGH VOLTAGE ELECTRON
US·11 granted patents·1 pending application·387 citations·filing 1979–2008
Top patents by PatentIndex Score
12 records- 0194US6469469B1Variable output induction motor drive systemSPELLMAN HIGH VOLTAGE ELECTRON·Filed 2000·Granted Oct 22, 2002·69 cites·59 claims
- 0293US6984897B2Electro-mechanical energy conversion system having a permanent magnet machine with stator, resonant transfer link and energy converter controlsSPELLMAN HIGH VOLTAGE ELECTRON·Filed 2003·Granted Jan 10, 2006·62 cites·12 claims
- 0392US4248162ATable with electrostatic air purifier/cleanerSPELLMAN HIGH VOLTAGE ELECTRON·Filed 1979·Granted Feb 3, 1981·80 cites·7 claims
- 0489US6954004B2Doubly fed induction machineSPELLMAN HIGH VOLTAGE ELECTRON·Filed 2003·Granted Oct 11, 2005·45 cites·32 claims
- 0580US4311942ACompact fluorescent lamp and method and means for magnetic arc spreadingSPELLMAN HIGH VOLTAGE ELECTRON·Filed 1979·Granted Jan 19, 1982·17 cites·14 claims
- 0677US4805081AMulti-mode control systems for high-frequency resonant invertersSPELLMAN HIGH VOLTAGE ELECTRON·Filed 1987·Granted Feb 14, 1989·36 cites·26 claims
- 0765US4311943AFluorescent lamp with arc spreading with recombination structuresSPELLMAN HIGH VOLTAGE ELECTRON·Filed 1979·Granted Jan 19, 1982·10 cites·2 claims
- 0864US6924991B2Energy transfer multiplexerSPELLMAN HIGH VOLTAGE ELECTRON·Filed 2003·Granted Aug 2, 2005·18 cites·44 claims
- 0963US4488214AHigh-power, high-frequency inverter system with combined digital and analog controlSPELLMAN HIGH VOLTAGE ELECTRON·Filed 1982·Granted Dec 11, 1984·18 cites·22 claims
- 1054US5668708ADC power supply with reduced rippleSPELLMAN HIGH VOLTAGE ELECTRON·Filed 1996·Granted Sep 16, 1997·27 cites·17 claims
- 1147US4636685AMagnetic arc spreading fluorescent lamp with protective envelopeSPELLMAN HIGH VOLTAGE ELECTRON·Filed 1983·Granted Jan 13, 1987·5 cites·7 claims
- 1246US2008180031A1Device for remediation of gaseous and aerosol streamsSPELLMAN HIGH VOLTAGE ELECTRON·Filed 2008·Application pending·0 cites
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