Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DT

David Tweed — 5 Patents

Harris: 2 patents #731 of 2,288Top 35%
Chelmsford, MA: #224 of 858 inventorsTop 30%
Massachusetts: #23,459 of 88,656 inventorsTop 30%
Overall (All Time): #1,030,704 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
7411378 Power factor controller that computes currents without measuring them Olin Lathrop 2008-08-12
7295567 Audio signal rate adaptation method and system Alan Keane 2007-11-13
5923597 Dynamically variable digital delay line William W. Rollins 1999-07-13
5892771 System for establishing a TDM information protocol over a communications path Kenneth Beaupre 1999-04-06
5818769 Dynamically variable digital delay line William W. Rollins 1998-10-06