Issued Patents All Time
Showing 1–25 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11391301 | Electrohydraulic poppet valve device control that maintains the last commanded position of a device upon power interruption and provides back-up position control | Larry Portolese, Matthew Arend | 2022-07-19 |
| 11359551 | Secondary flow lockout valve | Steven Alan Lewis, Gary A. Valencourt | 2022-06-14 |
| 11242875 | System that maintains the last commanded position of device controlled by a two-stage, four-way electrohydraulic servo valve upon power interruption | Matthew Arend, Charles Walejewski, Calin Bondariu | 2022-02-08 |
| 11066150 | Propeller oil control system for aircraft turboprop engines | Sammuel Tillich, Steven Alan Lewis, Christopher D. Eick, Donald Striker, Michael Albert McPherson | 2021-07-20 |
| 10968832 | Combined overspeed and fuel stream selector systems | Larry Portolese, Edward Zielinski, David Tuttle, Eric Arnett | 2021-04-06 |
| 10850831 | Propeller pitch control system for aircraft turboprop engines | Sammuel Tillich, Steven Alan Lewis, Christopher D. Eick, Donald Striker, Michael Albert McPherson | 2020-12-01 |
| 10807701 | Aircraft turboprop engine propeller pitch control system including a controllable feather valve | Hannah Amor, Gary A. Valencourt, Christopher D. Eick, Donald Striker, Kevin L. Baker +1 more | 2020-10-20 |
| 10472050 | Propeller pitch control actuation system | Dugan Shelby, Martin Dutka, Brad McRoberts | 2019-11-12 |
| 9885287 | Gas turbine engine mechanical-electrical hybrid fuel delivery system | Don Striker, Michael Albert McPherson, Elmer Greenbank | 2018-02-06 |
| 9709177 | Two-position, two-stage servo valve | Larry Portolese | 2017-07-18 |
| 9453463 | High efficiency, high pressure gas turbine engine fuel supply system | Edward Zielinski, David Tuttle | 2016-09-27 |
| 9441598 | Aircraft fuel filter impending and actual bypass indication system | Gregory Kline, Eric Hechtl | 2016-09-13 |
| 9353688 | High pressure, multiple metering zone gas turbine engine fuel supply system | Edward Zielinski, Larry Portolese, David Tuttle | 2016-05-31 |
| 9234465 | Fuel flow divider and ecology system for a gas turbine engine fuel flow control system | Brad McRoberts, Greg Lafferty | 2016-01-12 |
| 9140190 | Gas turbine engine fuel metering valve adapted to selectively receive fuel flow increase/decrease commands from the engine control and from the back-up fuel control | Larry Portolese, Gregory Kline, David Tuttle, Brad McRoberts, Greg Lafferty | 2015-09-22 |
| 9068509 | Gas turbine engine fuel control thrust control override system | Larry Portolese, David J. Lawrence | 2015-06-30 |
| 8800594 | Gas turbine engine fuel return valve and system | Steven Alan Lewis, Larry Portolese | 2014-08-12 |
| 8739811 | Direct metering fuel system with constant servo flow | David Tuttle, William Scott Rowan | 2014-06-03 |
| 8529221 | Method and system for fuel control in a gas turbine engine | Brent J. Gassman, Harold I. Miller, Timothy F. Wiegand | 2013-09-10 |
| 8353306 | Fuel divider system for gas turbine engine | David Tuttle, David J. Lawrence | 2013-01-15 |
| 8316630 | Flow equalizing override assembly for fuel divider system | David Tuttle, David J. Lawrence | 2012-11-27 |
| 8122699 | Ecology valve fuel return system operable in fluid isolation during gas turbine engine shut-down | David J. Lawrence, Larry Portolese | 2012-02-28 |
| 8046983 | Ecology valve fuel return system for gas turbine engine | David J. Lawrence | 2011-11-01 |
| 7966995 | Dual level pressurization control based on fuel flow to one or more gas turbine engine secondary fuel loads | Gregory A. Lafferty, David J. Lawrence, David Tuttle | 2011-06-28 |
| 7841841 | Flow prioritizing valve system | Eric Arnett | 2010-11-30 |