DP

David I. Perl

OE Otis Elevator: 1 patents #966 of 1,840Top 55%
Overall (All Time): #3,609,764 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6038980 Transferring freight or passenger cabs between moving bogies Joseph Bittar, Frederick H. Barker, Anthony Cooney, Richard E. Peruggi, Michael D. Silverberg 2000-03-21