Inventor
KOPEL ZEV
CA9 patents
⚠️ This page may combine multiple inventors who share the name “KOPEL ZEV”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT ENVIRONMENTAL PROD
8 patentsUS6078729AJun 20, 2000
Foam, drain and fill control system for humidifier
NAT ENVIRONMENTAL PROD120 citations96
US5744923AApr 28, 1998
Microprocessor-based controller for actuator motors with capacitive power backup and method therefor
NAT ENVIRONMENTAL PROD76 citations91
US5583301ADec 10, 1996
Ultrasound air velocity detector for HVAC ducts and method therefor
NAT ENVIRONMENTAL PROD33 citations90
US5278454AJan 11, 1994
Emergency capacitive energy source and circuit for damper motors and actuator motors
NAT ENVIRONMENTAL PROD52 citations89
US7012223B2Mar 14, 2006
Forced-air heater control system and method
NAT ENVIRONMENTAL PROD14 citations82
US6792963B2Sep 21, 2004
Coolant fed humidifier having siphon drain and method therefor
NAT ENVIRONMENTAL PROD17 citations82
US7011300B2Mar 14, 2006
Steam humidifier and method
NAT ENVIRONMENTAL PROD7 citations69
US7534306B2May 19, 2009
Steam humidifier and method
NAT ENVIRONMENTAL PROD3 citations58