Inventor
CURTISS WILLIAM P
US22 patents
⚠️ This page may combine multiple inventors who share the name “CURTISS WILLIAM P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DRAPER LAB CHARLES S
8 patentsUS4445080AApr 24, 1984
System for indirectly sensing flux in an induction motor
DRAPER LAB CHARLES S58 citations96
US4417194ANov 22, 1983
Induction generator system with switched capacitor control
DRAPER LAB CHARLES S83 citations96
US4275343AJun 23, 1981
Back EMF controlled permanent magnet motor
DRAPER LAB CHARLES S51 citations92
US4356440AOct 26, 1982
Power factor correction system
DRAPER LAB CHARLES S51 citations91
US4868479ASep 19, 1989
Low loss permanent magnet motor
DRAPER LAB CHARLES S29 citations87
US4467262AAug 21, 1984
Polyphase motor drive system with balanced modulation
DRAPER LAB CHARLES S18 citations74
US4306182ADec 15, 1981
Polyphase motor drive system with balanced modulation
DRAPER LAB CHARLES S17 citations74
US4413223ANov 1, 1983
Induction generator frequency control system
DRAPER LAB CHARLES S7 citations73
ECOAIR CORP
6 patentsUS5502368AMar 26, 1996
Hybrid alternator with voltage regulator
ECOAIR CORP108 citations99
US5753989AMay 19, 1998
Hybrid alternator
ECOAIR CORP118 citations98
US5710471AJan 20, 1998
Hybrid alternator with full output at idle
ECOAIR CORP60 citations96
US5631544AMay 20, 1997
Hybrid alternator with voltage regulator
ECOAIR CORP73 citations96
US5656922AAug 12, 1997
Vehicle based AC power system
ECOAIR CORP100 citations94
US6545884B2Apr 8, 2003
Alternator system
ECOAIR CORP13 citations84
IMEC CORP
6 patentsUS4670698AJun 2, 1987
Adaptive induction motor controller
IMEC CORP69 citations96
US4528898AJul 16, 1985
Fume hood controller
IMEC CORP113 citations96
US4400655AAug 23, 1983
Self generative variable speed induction motor drive
IMEC CORP55 citations96
US4455513AJun 19, 1984
Self-starting transducerless, brushless D.C. motor controller
IMEC CORP60 citations94
US4469997ASep 4, 1984
Self generative PWM voltage source inverter induction motor drive
IMEC CORP39 citations92
US4506321AMar 19, 1985
Motion control system with adaptive deceleration
IMEC CORP39 citations91