Inventor
GUNTER WAYNE M
US4 patents
Patents
4 patentsUS6774782B2Aug 10, 2004
Radio frequency personnel alerting security system and method
BATTELLE MEMORIAL INSTITUTE210 citations97
US7081815B2Jul 25, 2006
Radio frequency security system, method for a building facility or the like, and apparatus and methods for remotely monitoring the status of fire extinguishers
BATTELLE MEMORIAL INSTITUTE132 citations96
US6646550B1Nov 11, 2003
Radio frequency security system and method for a building facility
BATTELLE MEMORIAL INSTITUTE47 citations91
US6323773B1Nov 27, 2001
Alerting device and method for reminding a person of a risk
BATTELLE MEMORIAL INSTITUTE50 citations91