PK

Phyllis K. Kristal

DP Deka Products Limited Parternship: 2 patents #258 of 379Top 70%
📍 Sunapee, NH: #8 of 17 inventorsTop 50%
🗺 New Hampshire: #5,349 of 12,181 inventorsTop 45%
Overall (All Time): #2,254,004 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5971091 Transportation vehicles and methods Dean Kamen, Robert R. Ambrogi, Robert J. Duggan, Richard Kurt Heinzmann, Brian R. Key +1 more 1999-10-26
5701965 Human transporter Dean Kamen, Robert R. Ambrogi, Robert J. Duggan, Richard Kurt Heinzmann, Brian R. Key +1 more 1997-12-30