Inventor
RETZLOFF JAMES G
US13 patents
⚠️ This page may combine multiple inventors who share the name “RETZLOFF JAMES G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VIKING CORP
10 patentsUS6152236ANov 28, 2000
Combined trigger and concealing device for a sprinkler head
VIKING CORP105 citations98
US6805203B2Oct 19, 2004
Cover plate for concealed sprinkler
VIKING CORP39 citations96
US5628367AMay 13, 1997
Temperature sensitive sprinkler head with improved spring
VIKING CORP56 citations94
US5020601AJun 4, 1991
Concealed sprinkler assembly
VIKING CORP98 citations94
US5992532ANov 30, 1999
Wet pipe fire protection system
VIKING CORP93 citations92
US5146949ASep 15, 1992
Check valve with spring loaded clapper assembly
VIKING CORP29 citations91
US4623023ANov 18, 1986
Sprinkler head
VIKING CORP29 citations91
US4570720AFeb 18, 1986
Sprinkler head
VIKING CORP24 citations81
US9993674B2Jun 12, 2018
Cover plate for concealed sprinkler
VIKING CORP2 citations73
US6082465AJul 4, 2000
Thrust reverser sprinkler head
VIKING CORP12 citations73