Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917410 | Glass break sensor | Hartwell Fong | 1999-06-29 |
| 5831528 | Detection of glass breakage | Hartwell Fong | 1998-11-03 |
| 5793288 | Intrusion alarm with independent trouble evaluation | John Peterson, Reinhart K. Pildner | 1998-08-11 |
| 5675320 | Glass break detector | Hartwell Fong | 1997-10-07 |
| 5504473 | Method of analyzing signal quality | Hartwell Fong | 1996-04-02 |
| 5453733 | Intrusion alarm with independent trouble evaluation | John Peterson, Reinhart K. Pildner | 1995-09-26 |
| 5444432 | Detection signal evaluation at varying signal levels | Reinhart K. Pildner | 1995-08-22 |
| 5216410 | Intrusion alarm sensing unit | Reinhart K. Pildner | 1993-06-01 |