DB

Douglas J. Ballantyne

📍 Ottawa, CA: #2,623 of 6,399 inventorsTop 45%
Overall (All Time): #2,246,182 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5867821 Method and apparatus for electronically accessing and distributing personal health care information and services in hospitals and homes Michael Mulhall 1999-02-02
5133079 Method and apparatus for distribution of movies Michael Mulhall 1992-07-21