Issued Patents All Time
Showing 1–25 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12249472 | Controlling a controllably conductive device based on zero-crossing detection | Robert W. Lenig, Michael Sizemore, Joshua W. Thaler | 2025-03-11 |
| 12156302 | Load control device for high-efficiency loads | Joseph T. Parent, Russell Weightman | 2024-11-26 |
| 11935714 | Controlling a controllably conductive device based on zero-crossing detection | Robert W. Lenig, Michael Sizemore, Joshua W. Thaler | 2024-03-19 |
| 11844155 | Load control device for high-efficiency loads | Joseph T. Parent, Russell Weightman | 2023-12-12 |
| 11545324 | Controlling a controllably conductive device based on zero-crossing detection | Robert W. Lenig, Michael Sizemore, Joshua W. Thaler | 2023-01-03 |
| 11350494 | Load control device for high-efficiency loads | Joseph T. Parent, Russell Weightman | 2022-05-31 |
| 11071186 | Charging an input capacitor of a load control device | Mark S. Taipale, Matthew Robert Blakeley, Johnathan Paul Ross | 2021-07-20 |
| 11056304 | Controlling a controllably conductive device based on zero-crossing detection | Robert W. Lenig, Michael Sizemore, Joshua W. Thaler | 2021-07-06 |
| 10827571 | Load control device for high-efficiency loads | Joseph T. Parent, Russell Weightman | 2020-11-03 |
| 10616973 | Charging an input capacitor of a load control device | Mark S. Taipale, Matthew Robert Blakeley, Johnathan Paul Ross | 2020-04-07 |
| 10455674 | Methods and systems for controlling an electrical load | Venkatesh Chitta, Matthew R. Zartman | 2019-10-22 |
| 10424451 | Controlling a controllably conductive device based on zero-crossing detection | Robert W. Lenig, Michael Sizemore, Joshua W. Thaler | 2019-09-24 |
| 10231319 | Methods and systems for controlling an electrical load | Venkatesh Chitta, Matthew R. Zartman | 2019-03-12 |
| 10187944 | Load control device for high-efficiency loads | Joseph T. Parent, Russell Weightman | 2019-01-22 |
| 10004131 | Methods and systems for controlling an electrical load | Venkatesh Chitta, Matthew R. Zartman | 2018-06-19 |
| 9991075 | Controlling a controllably conductive device based on zero-crossing detection | Robert W. Lenig, Michael Sizemore, Joshua W. Thaler | 2018-06-05 |
| 9955547 | Charging an input capacitor of a load control device | Mark S. Taipale, Matthew Robert Blakeley, Johnathan Paul Ross | 2018-04-24 |
| 9462660 | Controlling an electronic dimming ballast during low temperature or low mercury conditions | Venkatesh Chitta, Matthew R. Zartman | 2016-10-04 |
| 7880405 | System and method for providing adjustable ballast factor | Venkatesh Chitta, Kenneth Dale Walma | 2011-02-01 |
| 7368916 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2008-05-06 |
| 7339322 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2008-03-04 |
| 7323877 | Apparatus and methods for making spectroscopic measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2008-01-29 |
| 7259519 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2007-08-21 |
| 7224124 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2007-05-29 |
| 7196476 | Apparatus and methods for making capacitive measurements of cathode fall in fluorescent lamps | John F. Waymouth, Robert T. Nachtrieb, Farheen Khan, Mark Alan Hartfield, Mark S. Taipale +1 more | 2007-03-27 |