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Donald Drumm
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Billerica, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Multi-active-axis, non-exoskeletal rehabilitation device
Patent number
12,350,830
Issue date
Jul 8, 2025
Barrett Technology, LLC
William T. Townsend
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Grant
High performance current sensing architecture for brushless motors
Patent number
11,290,043
Issue date
Mar 29, 2022
Barrett Technology, LLC
Claude F. Valle
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Method and apparatus for connecting an ultracompact, high-performan...
Patent number
10,148,155
Issue date
Dec 4, 2018
Barrett Technology, LLC
David Wilkinson
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Autoilluminating lamp system
Patent number
6,819,080
Issue date
Nov 16, 2004
Vessel Inc.
Stefane E. Barbeau
F21 - LIGHTING
Information
Patent Grant
Autoilluminating rechargeable lamp system
Patent number
6,479,965
Issue date
Nov 12, 2002
Vessel Inc.
Stefane E. Barbeau
F21 - LIGHTING
Information
Patent Grant
Sourceless orientation sensor
Patent number
5,526,022
Issue date
Jun 11, 1996
Virtual I/O, Inc.
Michael J. Donahue
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Hands-free hardware keyboard
Patent number
5,426,450
Issue date
Jun 20, 1995
Wang Laboratories, Inc.
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Computer input device using orientation sensor
Patent number
5,363,120
Issue date
Nov 8, 1994
Wang Laboratories, Inc.
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Computer input device using an orientation sensor
Patent number
5,287,119
Issue date
Feb 15, 1994
Wang Laboratories, Inc.
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Computer input device using an orientation sensor
Patent number
5,142,655
Issue date
Aug 25, 1992
Wang Laboratories, Inc.
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Graphics surface assembly with calibrating memory device
Patent number
5,101,081
Issue date
Mar 31, 1992
Wang Laboratories, Inc.
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Computer input device using an orientation sensor
Patent number
5,068,645
Issue date
Nov 26, 1991
Wang Laboratories, Inc.
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Electronic light pointer for a projection monitor
Patent number
4,808,980
Issue date
Feb 28, 1989
Wang Laboratories, Inc.
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Control device
Patent number
4,573,110
Issue date
Feb 25, 1986
Wang Laboratories, Inc.
Donald E. Drumm
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
HIGH PERFORMANCE CURRENT SENSING ARCHITECTURE FOR BRUSHLESS MOTORS
Publication number
20220399842
Publication date
Dec 15, 2022
Barrett Technology, LLC
Claude F. Valle
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
MULTI-ACTIVE-AXIS, NON-EXOSKELETAL REHABILITATION DEVICE
Publication number
20200298402
Publication date
Sep 24, 2020
Barrett Technology, LLC
William T. Townsend
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information
Patent Application
HIGH PERFORMANCE CURRENT SENSING ARCHITECTURE FOR BRUSHLESS MOTORS
Publication number
20200153372
Publication date
May 14, 2020
Barrett Technology, LLC
Claude F. Valle
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
METHOD AND APPARATUS FOR CONNECTING AN ULTRACOMPACT, HIGH-PERFORMAN...
Publication number
20190280571
Publication date
Sep 12, 2019
Barrett Technology, LLC
David Wilkinson
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
METHOD AND APPARATUS FOR CONNECTING AN ULTRACOMPACT, HIGH-PERFORMAN...
Publication number
20150155765
Publication date
Jun 4, 2015
Barrett Technology, Inc.
Brian Zenowich
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
Autoilluminating rechargeable lamp system
Publication number
20030146735
Publication date
Aug 7, 2003
Stefane E. Barbeau
F21 - LIGHTING
Information
Patent Application
Portable bar code simulator device and method
Publication number
20020074404
Publication date
Jun 20, 2002
Donald E. Drumm
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Rechargeable lamp system
Publication number
20010055207
Publication date
Dec 27, 2001
Stefane E. Barbeau
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR