Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9675448 | Speech valve, a tool for facilitating insertion of a speech valve and a tool for holding a speech valve | Jean Marie Steeve Lamvohee, Catherine Dobson | 2017-06-13 |
| 8398711 | Speech valve | Stephen R. Ell, Timothy A. Paget, Catherine Dobson, Zahra N. Mahmoud | 2013-03-19 |
| 6595445 | Coffee grinder with chaff dispersion reducing apparatus and method | Marek Kwiatkowski, Wit Gavin Niesiolowski | 2003-07-22 |