Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5968371 | Lubricant circulation diagnostic and modeling system | Barry M. Verdegan | 1999-10-19 |
| 5930371 | Tunable acoustic system | C. Raymond Cheng, Jason McIntosh, Michael T. Zuroski | 1999-07-27 |
| 5715320 | Active adaptive selective control system | Mark C. Allie, Charles W. Brokish | 1998-02-03 |
| 5627747 | System for developing and operating an active sound and vibration control system | Douglas E. Melton, James E. Allard, Brian Finn, Jerry J. Trantow, Steven Popovich +2 more | 1997-05-06 |
| 5602928 | Multi-channel communication system | Cary D. Bremigan | 1997-02-11 |
| 5570425 | Transducer daisy chain | Seth D. Goodman, Douglas E. Melton, Edward R. Braun | 1996-10-29 |
| 5418873 | Active acoustic attenuation system with indirect error sensing | — | 1995-05-23 |
| 5206911 | Correlated active attenuation system with error and correction signal input | Mark C. Allie | 1993-04-27 |
| 5172416 | Active attenuation system with specified output acoustic wave | Mark C. Allie, Cary D. Bremigan | 1992-12-15 |
| 5088575 | Acoustic system with transducer and venturi | — | 1992-02-18 |
| 5033082 | Communication system with active noise cancellation | Mark C. Allie | 1991-07-16 |
| 5022082 | Active acoustic attenuation system with reduced convergence time | Mark C. Allie | 1991-06-04 |
| 4987598 | Active acoustic attenuation system with overall modeling | — | 1991-01-22 |
| 4903249 | Rigid foraminous microphone probe for acoustic measurement in turbulent flow | Richard H. Hoops, Mark C. Allie | 1990-02-20 |
| 4815139 | Active acoustic attenuation system for higher order mode non-uniform sound field in a duct | Mark C. Allie, Richard H. Hoops | 1989-03-21 |
| 4811309 | Microphone probe for acoustic measurement in turbulent flow | Mark C. Allie, Richard H. Hoops | 1989-03-07 |
| 4677677 | Active sound attenuation system with on-line adaptive feedback cancellation | — | 1987-06-30 |
| 4677676 | Active attenuation system with on-line modeling of speaker, error path and feedback pack | — | 1987-06-30 |
| 4665549 | Hybrid active silencer | Mark C. Allie, Richard H. Hoops | 1987-05-12 |
| 4359136 | Muffler construction | — | 1982-11-16 |