Douglas Daniel Gardner

📍 Arlington, VA: #42 of 164 inventorsTop 30%

🗺 Virginia: #701 of 2,744 inventorsTop 30%

Overall (2011): #314,210 of 364,097Top 90%

Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
7887055	Logic and mathematical puzzle	—	2011-02-15