Douglas Michael Bartz

📍 Bloomington, IN: #533 of 943 inventorsTop 60%

🗺 Indiana: #19,404 of 33,936 inventorsTop 60%

Overall (All Time): #3,476,344 of 4,157,543Top 85%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6722518	Rotatable drink opening cover	—	2004-04-20