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OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #2,599,436 of 4,157,543Top 65%
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Issued Patents All Time

Patent #TitleCo-InventorsDate
11724916 Interlock assembly for elevator door and elevator system Meihong Mao, Fei Long, Yaxin Zhang 2023-08-15