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USPTO Patent Rankings Data through Dec 31, 2025
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Ralph S. Stripling — 9 Patents

OEOtis Elevator: 9 patents #160 of 1,840Top 9%
Berlin, DE: #779 of 9,690 inventorsTop 9%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Ralph S. Stripling has been granted 9 US patents while listed as an inventor at Otis Elevator. The first was granted in 2003 and the most recent in June 2023. Ralph S. Stripling ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Ralph S. Stripling in Berlin, DE.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11673767 Elevator systems Sven Knuth 2023-06-13
11414297 Elevator safety device Peter Herkel, Mustapha Toutaoui, Sven Knuth, Raphael Pecek 2022-08-16
9637349 Elevator brake including coaxially aligned first and second brake members Helmut Lothar Schroeder-Brumloop, Pascal Rebillard, Gerard Sirigu, Olivier Dukacz, Juan Antonio Illan +2 more 2017-05-02
8960407 Signal correlation for missing step detection in conveyors Burkhard Braasch, Ingo Engelhard, Dirk H. Tegtmeier, Peter Herkel, Frank Kirchhoff 2015-02-24
8746413 Single brakeshoe test (electrical) for elevators Helmut Lothar Schroeder-Brumloop, Pascal Rebillard, Gerard Sirigu, Olivier Dukacz, Juan Antonio Illan +2 more 2014-06-10
8141693 Combined traffic flow and maintenance information display for a passenger conveyor Frank Sansevero, Carla Majuntke, Scott Ashworth, Bernward Engelke, Qingdong Jiang +1 more 2012-03-27
7568570 Safety monitoring system for a people conveyor Dietmar Thaler, Frank Sansevero, Bernward Engelke, Andreas Stuffel, Peter von Riegen +5 more 2009-08-04 $60,940,000
7249667 Traffic flow indicator for a passenger conveyor Frank Sansevero, Carla Majuntke, Bernward Engelke, Thomas Swyst, Alexander Mueller 2007-07-31 $37,586,000
6626279 Process for switching between main supply and a frequency inverter and vice versa for an escalator drive Reinhard Henkel, Stefan Spannhake, Richard Markus 2003-09-30 $46,874,000