Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4550812 | Fixed position, fixed frequency pendular-type vibration absorber with frequency linearization | — | 1985-11-05 |
| 4365770 | Fixed position variable frequency pendular-type vibration absorber | S. John Washburn | 1982-12-28 |
| 4213518 | Fixed position pendular-type vibration absorber with linearization at fixed or variable frequencies | Paul von Hardenberg, Edward Lavoie | 1980-07-22 |