Douglas K. Hartz

📍 Wilmington, OH: #67 of 170 inventorsTop 40%

🗺 Ohio: #30,338 of 73,341 inventorsTop 45%

Overall (All Time): #2,176,699 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6976336	Overhang falsework	—	2005-12-20
6848221	Overhang falsework	—	2005-02-01