Inventor · disambiguated record
Sib S. Ray
Also filed as: RAY SIB S
4 granted patents·138 citations·filing 1990–1997
80Inventor score
Files withOTIS ELEVATOR CO4
Top patents by PatentIndex Score
4 records- 0191US5299661AMechanical overspeed safety deviceOTIS ELEVATOR CO·Filed 1992·Granted Apr 5, 1994·55 cites·8 claims
- 0283US6095289AApparatus and method of thermally detecting elevator machine brakeOTIS ELEVATOR CO·Filed 1997·Granted Aug 1, 2000·45 cites·2 claims
- 0363US5101930AHydraulic elevator mufflerOTIS ELEVATOR CO·Filed 1990·Granted Apr 7, 1992·31 cites·10 claims
- 0433US5076146AMethod and apparatus for protecting a cylinder of an hydraulic elevatorOTIS ELEVATOR CO·Filed 1990·Granted Dec 31, 1991·7 cites·9 claims
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