Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5999317 | Toy mirror with transmissive image mode | — | 1999-12-07 |
| 5974757 | Privacy enclosure | Thomas J. Scanlan, Charles A. Marttila, Ronald W. Gerdes, David W. Schilling, Joseph G. Mandell +1 more | 1999-11-02 |
| 5813180 | Privacy enclosure | Thomas J. Scanlan, Charles A. Marttila, Ronald W. Gerdes, David W. Schilling, Joseph G. Mandell +1 more | 1998-09-29 |
| 5658656 | Use of materials comprising microbubbles as acoustical barriers | Michael W. Dolezal, Ronald W. Gerdes, Gary N. Harvieux, Charles A. Marttila, Joseph G. Mandell +1 more | 1997-08-19 |
| 5504281 | Perforated acoustical attenuators | Thomas J. Scanlan, Charles A. Marttila, Joseph G. Mandell | 1996-04-02 |
| 4814546 | Electromagnetic radiation suppression cover | Charles D. Hoyle, Ronald W. Seemann | 1989-03-21 |