CH

Charles D. Helfenberger

📍 Charlotte, NC: #1,329 of 4,868 inventorsTop 30%
🗺 North Carolina: #14,587 of 45,564 inventorsTop 35%
Overall (All Time): #1,490,644 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9633212 Intelligent key selection and generation Todd W. Arnold, Elizabeth A. Dames, Richard V. Kisley, Jimmie R. Mayfield, Jr. 2017-04-25
9607159 Intelligent key selection and generation Todd W. Arnold, Elizabeth A. Dames, Richard V. Kisley, Jimmie R. Mayfield, Jr. 2017-03-28
9471796 Intelligent key selection and generation Todd W. Arnold, Elizabeth A. Dames, Richard V. Kisley, Jimmie R. Mayfield, Jr. 2016-10-18