Inventor · disambiguated record
Leonard T. Armstrong
Also filed as: ARMSTRONG LEONARD · ARMSTRONG LEONARD T
5 granted patents·22 citations·filing 1993–2020
72Inventor score
Top patents by PatentIndex Score
5 records- 0189US10197141B2Electric actuator with a fail-safe mode of operationMETSO FLOW CONTROL USA INC·Filed 2015·Granted Feb 5, 2019·9 cites·20 claims
- 0257US10480633B2Electric actuator with a fail-safe mode of operationMETSO FLOW CONTROL USA INC·Filed 2018·Granted Nov 19, 2019·0 cites·20 claims
- 0352US11454308B2Eddy current brake appratus, systems, and related methods for use with actuators having a fail-safe mode of operationNELES USA INC·Filed 2020·Granted Sep 27, 2022·0 cites·13 claims
- 0442US7591216B2Fluid powered dual-piston actuator with efficient fluid porting and method of implementationMETSO AUTOMATION USA INC·Filed 2006·Granted Sep 22, 2009·0 cites·17 claims
- 0537US5503406AAssembly for live loading or valve packingsNELES JAMESBURY·Filed 1993·Granted Apr 2, 1996·13 cites·20 claims
Join the waitlist — get patent alerts
Get an alert when Leonard T. Armstrong files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →