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David Walker — 1 Patent in 2018

Reisterstown, MD: #4 of 20 inventorsTop 20%

Maryland: #926 of 3,464 inventorsTop 30%

Overall (2018): #439,515 of 503,207Top 90%

1 Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
9948771	Using an interactive voice response apparatus	William John Delinsky, Timothy James Fish, Michael D. Morency	2018-04-17