Inventor
LUMSDEN JOHN L
US17 patents
⚠️ This page may combine multiple inventors who share the name “LUMSDEN JOHN L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LUMSDEN JOHN L
7 patentsUS8120307B2Feb 21, 2012
System and method for providing constant loading in AC power applications
LUMSDEN JOHN L21 citations92
US8085009B2Dec 27, 2011
IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
LUMSDEN JOHN L23 citations92
US8619443B2Dec 31, 2013
System and method to boost voltage
LUMSDEN JOHN L12 citations83
US8085010B2Dec 27, 2011
TRIAC/SCR-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
LUMSDEN JOHN L14 citations83
US8823314B2Sep 2, 2014
Energy saving system and method for devices with rotating or reciprocating masses
LUMSDEN JOHN L6 citations82
US8698447B2Apr 15, 2014
Energy saving system and method for devices with rotating or reciprocating masses
LUMSDEN JOHN L11 citations82
US8723488B2May 13, 2014
IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
LUMSDEN JOHN L0 citations51
THE POWERWISE GROUP INC
3 patentsUS9716449B2Jul 25, 2017
Energy saving system and method for devices with rotating or reciprocating masses
THE POWERWISE GROUP INC2 citations70
US9716431B2Jul 25, 2017
IGBT/FET-based energy savings device for reducing a predetermined amount of voltage using pulse width modulation
THE POWERWISE GROUP INC0 citations50
US9628015B2Apr 18, 2017
Energy saving system and method for devices with rotating or reciprocating masses
THE POWERWISE GROUP INC0 citations49