Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8089198 | Piezoelectric loudspeaker | — | 2012-01-03 |
| 7105988 | Piezoelectric device and method to manufacture a piezoelectric device | — | 2006-09-12 |
| 6959484 | System for vibration control | Ronald Spangler, Baruch Pletner, Betsy Marsh, Robert N. Jacques | 2005-11-01 |
| 6639988 | Piezo integrated flat speakers for automotive interior panels | Mansour Ashtiani, Charles J. Scheib, David J. Brace | 2003-10-28 |
| 6485380 | Sports implement | Ronald Spangler, David Gilbert, Carl Prestia, Kenneth B. Lazarus, Jeffrey W. Moore +3 more | 2002-11-26 |
| 6345834 | Recreational snowboard | Kenneth B. Lazarus, Jeffrey W. Moore, Robert N. Jacques, Jonathan C. Allen | 2002-02-12 |
| 6196935 | Golf club | Ronald Spangler, David Gilbert, Carl Prestia, Kenneth B. Lazarus, Jeffrey W. Moore +3 more | 2001-03-06 |
| 6086490 | Baseball hat | Ronald Spangler, David Gilbert, Carl Prestia, Kenneth B. Lazarus, Jeffrey W. Moore +3 more | 2000-07-11 |