Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
WD

William J. Derwin — 3 Patents

OEOtis Elevator: 3 patents #506 of 1,840Top 30%
Town of West Hartford, CT: #349 of 885 inventorsTop 40%
Connecticut: #12,369 of 34,797 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
William J. Derwin has been granted 3 US patents while listed as an inventor at Otis Elevator. The first was granted in 2014 and the most recent in July 2019. William J. Derwin ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list William J. Derwin in Town of West Hartford, CT, US.

Patents per Year

Patents granted per year, 2014 to 2019Bar chart with a peak of 1 patents in 2014.peak 12014: 1 patents20142017: 1 patents20172019: 1 patents2019

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10364128 Method of installing a vertically extending member in an elevator system Valery Sheynkman, Richard S. Blakelock, Troy R. Chicoine, Douglas B. LaBrecque, Craig A. Buckley 2019-07-30
9604823 Assembly for roping an elevator Valery Sheynkman, Richard S. Blakelock, Troy R. Chicoine, Douglas B. LaBrecque, Craig A. Buckley 2017-03-28
8714537 Lifting device clamp having a curvilinear surface Jeffrey A. Smith, Jeffrey Dickinson, John E. Cegelka, Craig A. Buckley 2014-05-06