Bruce G. Koppenberg

📍 Deming, WA: #2 of 7 inventorsTop 30%

🗺 Washington: #23,018 of 76,902 inventorsTop 30%

Overall (All Time): #1,303,728 of 4,157,543Top 35%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
4881714	Concrete molding system with tubs	—	1989-11-21
4614066	Modular columbarium structure	—	1986-09-30
4566668	Apparatus for casting concrete	—	1986-01-28
4523413	Hanger fastener	—	1985-06-18