DL

Douglas E. Logan

OE Otis Elevator: 7 patents #220 of 1,840Top 15%
Overall (All Time): #705,200 of 4,157,543Top 20%
7
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
11718505 Elevator system suspension member termination Richard N. Fargo, Mark R. Gurvich, Richard J. Ericson, John P. Wesson, David Wayne Mckee +1 more 2023-08-08
10850944 Elevator system suspension member termination Richard N. Fargo, Mark R. Gurvich, Richard J. Ericson, John P. Wesson, David Wayne Mckee +1 more 2020-12-01
8734203 Elevator load bearing member having a jacket with at least one rough exterior surface John T. Pitts, Ary O. Mello, Hugh J. O'Donnell, John P. Wesson, William A. Veronesi +3 more 2014-05-27
8449349 Elevator load bearing member having a jacket with at least one rough exterior surface Mark S. Thompson, William A. Veronesi, John T. Pitts, Ary O. Mello, Hugh J. O'Donnell +6 more 2013-05-28
7117981 Load bearing member for use in an elevator system having external markings for indicating a condition of the assembly Leroy H. Favrow, Robert J. Haas, Paul A. Stucky, Neil Baldwin 2006-10-10
6742769 Elevator sheave for use with flat ropes Pedro S. Baranda, John T. Pitts, Richard L. Hollowell, John P. Wesson, Zlatko Strbuncelj +1 more 2004-06-01
6419208 Elevator sheave for use with flat ropes Pedro S. Baranda, John T. Pitts, Richard L. Hollowell, John P. Wesson 2002-07-16