Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10052714 | Ultrasonic welding device with dual converters | John Massa | 2018-08-21 |
| 9981337 | Diagnostic system and method for testing integrity of stack during ultrasonic welding | John Massa, James A. Markus | 2018-05-29 |
| 8016964 | System to prevent overloads for ultrasonic staking applications | Michael S. Stefansen | 2011-09-13 |
| 7160516 | High volume ultrasonic flow cell | John Massa, Robert J. Posca | 2007-01-09 |
| 6840280 | Flow through ultrasonic processing system | — | 2005-01-11 |
| 6588644 | Energy controller for vibration welder | — | 2003-07-08 |
| 6364977 | Tuning mechanism and method for vibration welding | — | 2002-04-02 |
| 5968007 | Power-limit control for ultrasonic surgical instrument | Alan Broadwin, John Massa | 1999-10-19 |