SS

Steven W. Steinfield

HP HP: 9 patents #4 of 888Top 1%
📍 San Diego, CA: #7 of 925 inventorsTop 1%
🗺 California: #66 of 17,285 inventorsTop 1%
Overall (1997): #674 of 185,788Top 1%
9
Patents 1997

Issued Patents 1997

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
5648806 Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer Brian J. Keefe, Winthrop D. Childers, Donald G. Harris, Majid Azmoon 1997-07-15
5648805 Inkjet printhead architecture for high speed and high resolution printing Brian J. Keefe, May F. Ho, Kenneth J. Courian, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-07-15
5648804 Compact inkjet substrate with centrally located circuitry and edge feed ink channels Brian J. Keefe, Winthrop D. Childers, Paul H. McClelland, Kenneth E. Trueba 1997-07-15
5638101 High density nozzle array for inkjet printhead Brian J. Keefe, May F. Ho, Kenneth J. Courian, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-06-10
5635966 Edge feed ink delivery thermal inkjet printhead structure and method of fabrication Brian J. Keefe, Winthrop D. Childers, Paul H. McClelland, Kenneth E. Trueba, Duane Fasen +7 more 1997-06-03
5625396 Ink delivery method for an inkjet print cartridge Brian J. Keefe, Winthrop D. Childers, Paul H. McClelland, Kenneth E. Trueba 1997-04-29
5619236 Self-cooling printhead structure for inkjet printer with high density high frequency firing chambers Brian J. Keefe, May F. Ho, Kenneth J. Courian, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-04-08
5604519 Inkjet printhead architecture for high frequency operation Brian J. Keefe, May F. Ho, Kenneth J. Courian, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-02-18
5594481 Ink channel structure for inkjet printhead Brian J. Keefe, May F. Ho, Kenneth J. Courian, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-01-14