ET

Ellen R. Tappon

HP HP: 7 patents #6 of 888Top 1%
📍 Corvallis, OR: #2 of 98 inventorsTop 3%
🗺 Oregon: #19 of 1,309 inventorsTop 2%
Overall (1997): #1,836 of 185,788Top 1%
7
Patents 1997

Issued Patents 1997

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDate
5648805 Inkjet printhead architecture for high speed and high resolution printing Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more 1997-07-15
5638101 High density nozzle array for inkjet printhead Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more 1997-06-10
5635968 Thermal inkjet printer printhead with offset heater resistors Eldurkar V. Bhaskar, Marzio Leban, Ulrich Hess, Niels J. Nielsen, Kenneth E. Trueba +1 more 1997-06-03
5619236 Self-cooling printhead structure for inkjet printer with high density high frequency firing chambers Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more 1997-04-08
5608436 Inkjet printer printhead having equalized shelf length Kit Baughman, Jeffrey A. Kahn, Paul H. McClelland, Kenneth E. Trueba 1997-03-04
5604519 Inkjet printhead architecture for high frequency operation Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more 1997-02-18
5594481 Ink channel structure for inkjet printhead Brian J. Keefe, May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers +4 more 1997-01-14