Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CB

Charles D. Bufford

DUDutton-Lainson: 2 patents #12 of 23Top 55%
Hastings, NE: #23 of 61 inventorsTop 40%
Nebraska: #1,893 of 5,697 inventorsTop 35%
Overall (All Time): #2,299,383 of 4,157,543Top 60%
2 Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5261132 Patient chair construction with recliner back tilt control and footrest hinge construction James M. Gruidel, Thomas G. Johnson 1993-11-16
5182821 Panel construction for bathing tub James M. Gruidel 1993-02-02