JH

John W. Hirschfeld

Overall (All Time): #2,250,080 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5913679 Ligature tool 1999-06-22
4791940 Electronic periodontal probe with a constant force applier Charles H. Gibbs, James G. Lee 1988-12-20