Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D445487 | Shower diverter control | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2001-07-24 |
| D443341 | Shower diverter control | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2001-06-05 |
| D443036 | Shower diverter control | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2001-05-29 |
| D443037 | Shower diverter control | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2001-05-29 |
| D443038 | Shower diverter escutcheon | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2001-05-29 |
| D443039 | Shower diverter escutcheon | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2001-05-29 |
| D442675 | Shower diverter escutcheon | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2001-05-22 |
| D433489 | Shower diverter control | Leonard J. Burns, Lizabeth Dretzka, Thomas A. Frisco | 2000-11-07 |