JB

John P. Bertsch

IT Ivl Technologies: 3 patents #4 of 9Top 45%
Overall (All Time): #1,651,441 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5428708 Musical entertainment system Brian C. Gibson 1995-06-27
5301259 Method and apparatus for generating vocal harmonies Brian C. Gibson 1994-04-05
5231671 Method and apparatus for generating vocal harmonies Brian Gibson 1993-07-27