HT

Herman M. Tilly

VD Von Duprin: 3 patents #14 of 58Top 25%
Overall (All Time): #1,651,380 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5450651 End cap locking overhead mounted door holder assembly Michael D. Coleman, Paul J. Haeck 1995-09-19
5446944 Rocker latch overhead door holder assembly Michael D. Coleman, Tammy S. Smith, Theodore J. Fritsch 1995-09-05
5426820 Modular reduced friction overhead door holder assembly Michael D. Coleman, Theodore J. Fritsch 1995-06-27