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USPTO Patent Rankings Data through Dec 31, 2025
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William T. Townsend — 21 Patents

BTBarrett Technology: 13 patents #1 of 30Top 4%
MIT: 3 patents #1,739 of 9,367Top 20%
NASA: 1 patents #1,837 of 3,881Top 50%
Weston, MA: #45 of 466 inventorsTop 10%
Massachusetts: #5,325 of 88,656 inventorsTop 7%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
William T. Townsend has been granted 21 US patents while listed as an inventor at Barrett Technology. The first was granted in 1990 and the most recent in December 2025. William T. Townsend ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list William T. Townsend in Weston, MA, US.

Patents per Year

Patents granted per year, 1990 to 2025Bar chart with a peak of 3 patents in 2025.peak 31990: 1 patents19901991: 1 patents1993: 2 patents19931994: 1 patents1995: 1 patents19951998: 1 patents2007: 1 patents20072009: 1 patents2011: 2 patents20112014: 1 patents2015: 1 patents20152018: 2 patents2021: 1 patents20212022: 2 patents2025: 3 patents2025

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDate
12494725 High performance current sensing architecture for brushless motors Claude F. Valle, IV, Amy Blank, Brian Zenowich, Thomas Nadovich, Donald E. Drumm +1 more 2025-12-09
12447089 Multi-active-axis, non-exoskeletal robotic rehabilitation device David Wilkinson, Albert Kuo Huei Yen, Claude F. Valle, IV, Michael Schiess 2025-10-21
12350830 Multi-active-axis, non-exoskeletal rehabilitation device David Wilkinson, Alexander Jenko, Julian Leland, Arvind Ananthanarayanan, James Patton +6 more 2025-07-08
11290043 High performance current sensing architecture for brushless motors Claude F. Valle, IV, Amy Blank, Brian Zenowich, Thomas Nadovich, Donald E. Drumm +1 more 2022-03-29
11237193 System and method of power grid monitoring — 2022-02-01
10925797 Multi-active-axis, non-exoskeletal rehabilitation device David Wilkinson, Alexander Jenko, Julian Leland, Arvind Ananthanarayanan, James Patton 2021-02-23
10148155 Method and apparatus for connecting an ultracompact, high-performance motor controller to an ultracompact, high-performance brushless DC motor David Wilkinson, Peter A. Botticelli, Donald E. Drumm, Darren Landino, Brian Zenowich 2018-12-04
10130546 Multi-active-axis, non-exoskeletal rehabilitation device David Wilkinson, Alexander Jenko, Julian Leland, Arvind Ananthanarayanan, James Patton 2018-11-20
9020644 Pistol-grip for intuitive control of a robotic or virtual hand Daniel Greeley, Daniel Henry Fourie, Bryce Lee, Yevgeniy Kozlenko, David Wilkinson 2015-04-28
8858374 Automatic pretensioning mechanism for tension element drives — 2014-10-14
8052857 Process for anodizing a robotic device — 2011-11-08
7893644 Ultra-compact, high-performance motor controller and method of using same Adam Crowell, Gill A. Pratt, Traveler Hauptman 2011-02-22
7511443 Ultra-compact, high-performance motor controller and method of using same Adam Crowell, Gill A. Pratt, Traveler Hauptman 2009-03-31
7168748 Intelligent, self-contained robotic hand Traveler Hauptman, Adam Crowell, Brian Zenowich, John Lawson, Vitaliy Krutik +1 more 2007-01-30
5755645 Exercise apparatus Larry C. Miller, Nathan Ulrich, Dana R. Yoerger, Yoky Matsuoka, Brandon D. Larocque 1998-05-26
5388480 Pretensioning mechanism for tension element drive systems — 1995-02-14
D352050 Robotic wrist Nathan Ulrich 1994-11-01
5207114 Compact cable transmission with cable differential J. Kenneth Salisbury, Jr. 1993-05-04
5193963 Force reflecting hand controller Douglas A. McAffee, Edward Ramsey Snow 1993-03-16
5046375 Compact cable transmission with cable differential J. Kenneth Salisbury, Jr., David M. DiPietro, Brian Eberman 1991-09-10
4903536 Compact cable transmission with cable differential J. Kenneth Salisbury, Jr., David M. DiPietro, Brian Eberman 1990-02-27

Frequent Collaborators

David Wilkinson6 shared
Brian Zenowich5 shared
Claude F. Valle, IV4 shared
Donald E. Drumm4 shared
Arvind Ananthanarayanan3 shared
Amy Blank3 shared

Nearby-Ranked Inventors

Subhash Sankuratripati21
Brian Riordan21
Woongki Min21
Jeremy Cailleteau21
Shigeru Chiba21
Cecilia Carbonelli21
Pin-Wen Chen21
Michael Danz21
Paul Kolen21