DR

David L. Ratner

Overall (All Time): #1,544,278 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
8493217 Programmable touch-activated signaling device Wayne H. Biessman, Jeff Glickman 2013-07-23
8178810 Electric-switch activated by sensing a touch through a large variety of cover-plate materials 2012-05-15
7283039 Window-attached alerting device 2007-10-16