Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10121333 | Device with precision frequency stabilized audible alarm circuit | Daniel Adam Warren, Lawrence F. Heyl, Dietrich Ho, Ian C. Smith, William Alan Saperstein +1 more | 2018-11-06 |
| 9903814 | Systems and methods for optically coupling optoelectronic components of a hazard detection system to determine a smoke condition of an environment | Daniel Adam Warren, Ian C. Smith, Andrew Goldenson, Dietrich Ho, Anurag Gupta | 2018-02-27 |