David W. Richardson

📍 Ash Grove, MO: #1 of 1 inventorsTop 100%

🗺 Missouri: #597 of 2,351 inventorsTop 30%

Overall (2018): #441,591 of 503,207Top 90%

Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
10052265	Spill proof spitoon	James E. Duffer	2018-08-21