SR

Sib S. Ray

OE Otis Elevator: 4 patents #397 of 1,840Top 25%
Overall (All Time): #1,280,364 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6095289 Apparatus and method of thermally detecting elevator machine brake August J. Dobler 2000-08-01
5299661 Mechanical overspeed safety device Mukunda B. Pramanik, Rajendra Mistry 1994-04-05
5101930 Hydraulic elevator muffler Richard N. Fargo, Louis Bialy, Henry Ryder 1992-04-07
5076146 Method and apparatus for protecting a cylinder of an hydraulic elevator Louis Bialy, Berry M. Grant, John T. Pitts 1991-12-31