Home › Inventors › Ralph A. Roberts

Ralph A. Roberts

Rio Dell, CA: #1 of 2 inventorsTop 50%

California: #149,087 of 386,348 inventorsTop 40%

Overall (All Time): #1,661,716 of 4,157,543Top 40%

3 Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #	Title	Co-Inventors	Date
5123842	Single tooth dental implant method	—	1992-06-23
4377382	Denture support frame	—	1983-03-22
4202099	Denture support frame	—	1980-05-13