BK

Brian J. Keefe

HP HP: 10 patents #2 of 888Top 1%
📍 Village of La Jolla, CA: #3 of 159 inventorsTop 2%
🗺 California: #50 of 17,285 inventorsTop 1%
Overall (1997): #607 of 185,788Top 1%
10
Patents 1997

Issued Patents 1997

Showing 1–10 of 10 patents

Patent #TitleCo-InventorsDate
5648806 Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer Steven W. Steinfield, Winthrop D. Childers, Donald G. Harris, Majid Azmoon 1997-07-15
5648805 Inkjet printhead architecture for high speed and high resolution printing May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-07-15
5648804 Compact inkjet substrate with centrally located circuitry and edge feed ink channels Steven W. Steinfield, Winthrop D. Childers, Paul H. McClelland, Kenneth E. Trueba 1997-07-15
5638101 High density nozzle array for inkjet printhead May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-06-10
5635966 Edge feed ink delivery thermal inkjet printhead structure and method of fabrication Steven W. Steinfield, 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 Steven W. Steinfield, 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 May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-04-08
5604519 Inkjet printhead architecture for high frequency operation May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-02-18
5600349 Method of reducing drive energy in a high speed thermal ink jet printer 1997-02-04
5594481 Ink channel structure for inkjet printhead May F. Ho, Kenneth J. Courian, Steven W. Steinfield, Winthrop D. Childers, Ellen R. Tappon +4 more 1997-01-14