Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11420248 | Impact-compensating bucking bar | Steven F. Griffin, Darby Grant Cooper | 2022-08-23 |
| 8392194 | System and method for machine-based determination of speech intelligibility in an aircraft during flight operations | — | 2013-03-05 |
| 7198062 | Fluid control valve | Herbert L. Hoffman, Pat Parkin, Frederick R. Helms, Wen-Hwang Lin, Roy Hai-Tien Loh +9 more | 2007-04-03 |
| 6682413 | Fluid control valve | Herbert L. Hoffman, Pat Parkin, Frederick R. Helms, Wen-Hwang Lin, Roy Hai-Tien Loh +5 more | 2004-01-27 |
| 5209111 | Method of measuring cross-flow vortices by use of an array of hot-film sensors | Dal V. Maddalon, Siva M. Mangalam | 1993-05-11 |