Assignee
GRINNELL FIRE PROTECTION
US·11 granted patents·817 citations·filing 1977–1985
Top patents by PatentIndex Score
11 records- 0195US4580729ASprinkler head with improved spray uniformityGRINNELL FIRE PROTECTION·Filed 1985·Granted Apr 8, 1986·121 cites·7 claims
- 0295US4296815ADeflector with converging lower tines for horizontal sprinklerGRINNELL FIRE PROTECTION·Filed 1980·Granted Oct 27, 1981·107 cites·6 claims
- 0394US4408788AHingeable split pipe collarGRINNELL FIRE PROTECTION·Filed 1981·Granted Oct 11, 1983·176 cites·5 claims
- 0493US4405018ADeflector with surface for circumferentially redistributing fluid for improved spray uniformityGRINNELL FIRE PROTECTION·Filed 1981·Granted Sep 20, 1983·83 cites·4 claims
- 0590US4296816AHorizontal sprinkler deflector with flow lifting formationGRINNELL FIRE PROTECTION·Filed 1980·Granted Oct 27, 1981·89 cites·19 claims
- 0690US4279309ASprinkler head with noncircular throatGRINNELL FIRE PROTECTION·Filed 1979·Granted Jul 21, 1981·74 cites·9 claims
- 0780US4273195AFire protection sprinkler head with air-current diverting finsGRINNELL FIRE PROTECTION·Filed 1979·Granted Jun 16, 1981·42 cites·12 claims
- 0876US4585069ALiquid discharge nozzleGRINNELL FIRE PROTECTION·Filed 1984·Granted Apr 29, 1986·54 cites·12 claims
- 0965US4128128ADiaphragm actuated sprinkler headGRINNELL FIRE PROTECTION·Filed 1977·Granted Dec 5, 1978·19 cites·15 claims
- 1061US4570719ADry pipe valve acceleratorGRINNELL FIRE PROTECTION·Filed 1984·Granted Feb 18, 1986·35 cites·19 claims
- 1159US4215751AFinish plate assembly for a sprinkler head having interengaging ramp and arm elementsGRINNELL FIRE PROTECTION·Filed 1978·Granted Aug 5, 1980·17 cites·10 claims
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