HM

Harold F. McKnight

UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Charlotte, NC: #2,728 of 4,868 inventorsTop 60%
🗺 North Carolina: #26,533 of 45,564 inventorsTop 60%
Overall (All Time): #4,046,829 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4367631 Air conditioning apparatus and methods using underground duct Harold R. Johnson, III, Richard Ferguson 1983-01-11