Inventor
PUTKINEN ESA
FI9 patents
⚠️ This page may combine multiple inventors who share the name “PUTKINEN ESA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
KONE CORP
7 patentsUS9708156B2Jul 18, 2017
Method and apparatus for controlling movement of an elevator group
KONE CORP2 citations70
US7184286B2Feb 27, 2007
Bridge for driving a direct-current or alternating current load
KONE CORP2 citations61
US6898094B2May 24, 2005
DC/DC bridge control unit for controlling a direct-current load
KONE CORP4 citations61
US6697273B1Feb 24, 2004
Control unit for controlling a direct-current load
KONE CORP6 citations61
US12545550B2Feb 10, 2026
Elevator parking brake, a method for operating an elevator system and an elevator system
KONE CORP0 citations58
US9856110B2Jan 2, 2018
Method and apparatus for monitoring the lubricant content of elevator ropes
KONE CORP1 citations49
US8350501B2Jan 8, 2013
DC/DC bridge
KONE CORP0 citations49