DT

Dale A. Troppman

LI Lexalite International: 3 patents #4 of 12Top 35%
The Dow Chemical: 1 patents #2,215 of 4,115Top 55%
📍 Charlevoix, MI: #19 of 61 inventorsTop 35%
🗺 Michigan: #27,158 of 86,293 inventorsTop 35%
Overall (All Time): #1,635,817 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5967648 Lighting fixture including a neutral density polymeric material for controlled light distribution Thomas F. Barnes, Joel E. Robinson 1999-10-19
5481445 Transflection reflector having controlled reflected and transmitted light distribution Ronald L. Sitzema, Jr., Gregg A. Motter 1996-01-02
5143446 Lighting fixture with an improved light transmitting film Josh T. Barnes, Thomas F. Barnes, Earl E. Smith 1992-09-01