Issued Patents All Time
Showing 25 most recent of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12170459 | Tapped winding method for extended constant horsepower speed range | Robert F. McElveen | 2024-12-17 |
| 12126219 | Permanent magnet rotor with conductive flux barrier | Robert F. McElveen, Nicolas W. Frank | 2024-10-22 |
| 12040660 | Permanent magnet rotor with minimal cage | Robert F. McElveen, Nicolas W. Frank | 2024-07-16 |
| 11949287 | Consolidated stator laminations | Stephen T. Evon, Jerry L. Martin, Barron D. Grant, John M. Zedek | 2024-04-02 |
| 11742734 | Permanent magnet machine and rotor therefor | Robert F. McElveen, Nicolas W. Frank | 2023-08-29 |
| 11418074 | Rotary electrical machine with spoked rotor | Ghanshyam Shrestha, Colin Tschida, Paul Humphries | 2022-08-16 |
| 9620275 | Method of constructing a rotor for a line start interior permanent magnet motor | David McKinney | 2017-04-11 |
| D770673 | LED light fixture double seal end cap | Syed Q. Hasan, Brent T. Gathright, Anibal Z. Rosado | 2016-11-01 |
| 9379690 | Duty cycle controller | George P. Humphrey | 2016-06-28 |
| 9379708 | Switch driver circuit and associated methods | George P. Humphrey | 2016-06-28 |
| 8764219 | Sealed LED light fixture for use in food processing applications | Syed Q. Hasan, Anibal Z. Rosado | 2014-07-01 |
| D700097 | Exit sign and floodlights | Syed Q. Hasan, Anibal Z. Rosado | 2014-02-25 |
| D673667 | Cooling tower fan motor | Robert F. McElveen, Stephen T. Evon, Timothy Cain | 2013-01-01 |
| D636862 | Cooling tower fan motor | Robert F. McElveen, Stephen T. Evon | 2011-04-26 |
| 7880348 | Method of installing a permanent magnet motor in a cooling tower and a shroud used in connection therewith | Robert F. McElveen, Stephen T. Evon | 2011-02-01 |
| D624015 | Liquid cooled motor | Adam John Walker, Andreas A. Meyers | 2010-09-21 |
| D594963 | Shroud for cooling tower fan motor | Robert F. McElveen | 2009-06-23 |
| 7478286 | Circuit and method of detecting and resolving stuck I2C buses | George P. Humphrey | 2009-01-13 |
| D576941 | Electric motor | Steven T. Evon | 2008-09-16 |
| 6187134 | Reusable wafer support for semiconductor processing | Eugene M. Chow, Chris Storment, Albert Armes | 2001-02-13 |
| 6027225 | Battery powered light having solar and inductive charging means | Robert W. Hallman | 2000-02-22 |
| 5565174 | Apparatus for controlling removal of polymerization reaction effluent | David H. Burns | 1996-10-15 |
| 5455314 | Method for controlling removal of polymerization reaction effluent | David H. Burns | 1995-10-03 |
| 5233876 | Apparatus and methods for on-line analysis of one or more process streams | Mark A. LaPack, James C. Tou, Joanna L. Shih, Renne Y. Keith, Terry J. Nestrick | 1993-08-10 |
| 4817406 | Lock impressioning key | — | 1989-04-04 |