Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D545229 | Smoke alarm detector | Richard J. Roby, Michael S. Klassen, Leo Eskin, Albert E. Straus | 2007-06-26 |
| 7015807 | Method and apparatus for indicating activation of a smoke detector alarm | Richard J. Roby, Michael S. Klassen, Christopher F. Schemel, Diwakar Vashishat, Kelly R. Flint | 2006-03-21 |