Robert R. Highfill

📍 Oak Ridge, TN: #335 of 833 inventorsTop 45%

🗺 Tennessee: #7,532 of 20,272 inventorsTop 40%

Overall (All Time): #2,204,215 of 4,157,543Top 55%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
6590834	Local positioning system using acoustic time-of-flight and a fixed array of receivers and method for use	—	2003-07-08
4953971	Interactive image projection apparatus	—	1990-09-04