Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8795980 | Methods for determination of previous ethanol consumption | Anders Isaksson | 2014-08-05 |
| D418656 | Vibrating screen | — | 2000-01-04 |
| 6009180 | Fluidic element noise and vibration control constructs and methods | — | 1999-12-28 |
| 5749471 | Vibrating screen | — | 1998-05-12 |
| 5692702 | Active control of tone noise in engine ducts | — | 1997-12-02 |
| 5245552 | Method and apparatus for actively reducing multiple-source repetitive vibrations | Erik Godo | 1993-09-14 |
| 5233540 | Method and apparatus for actively reducing repetitive vibrations | Richard A. Russo | 1993-08-03 |
| 5197010 | Apparatus for continuously actively balancing rotors | — | 1993-03-23 |
| 5049768 | Reducing engine noise by active oscillatory torque control | — | 1991-09-17 |
| 4808863 | Active control system and method for reducing engine noise and vibration | — | 1989-02-28 |
| 4651566 | Portable impedance meter for non-destructive testing of sound absorbing panels | David R. Slotboom, Paul C. Topness | 1987-03-24 |
| 4305295 | Portable apparatus for measuring acoustic impedance at the surface of curved sound absorber | Robert B. Purves | 1981-12-15 |
| 4248093 | Holographic resolution of complex sound fields | Robert B. Purves | 1981-02-03 |