Inventor · Corvallis, OR, US

Ellen R. Tappon

17Patents
14h-index
25Co-inventors
74Inventor score

Filing activity: Jan 11, 1990 → Apr 27, 2006

Most-cited inventions

PatentTitleAreaCited byStatus
US5387314A Fabrication of ink fill slots in thermal ink-jet printheads utilizing chemical micromachining Performing Operations; Transporting 152 Expired
US5066357A Method for making flexible circuit card with laser-contoured vias and machined capacitors Electricity 109 Expired
US5635968A Thermal inkjet printer printhead with offset heater resistors Performing Operations; Transporting 100 Expired
US5463413A Internal support for top-shooter thermal ink-jet printhead Performing Operations; Transporting 76 Expired
US5350616A Composite orifice plate for ink jet printer and method for the manufacture thereof Emerging Cross-Sectional Technologies 68 Expired
US5417897A Method for forming tapered inkjet nozzles Performing Operations; Transporting 57 Expired
US5604519A Inkjet printhead architecture for high frequency operation Performing Operations; Transporting 56 Expired
US5648805A Inkjet printhead architecture for high speed and high resolution printing Performing Operations; Transporting 51 Expired
US5594481A Ink channel structure for inkjet printhead Performing Operations; Transporting 49 Expired
US5638101A High density nozzle array for inkjet printhead Performing Operations; Transporting 49 Expired
US5441593A Fabrication of ink fill slots in thermal ink-jet printheads utilizing chemical micromachining Performing Operations; Transporting 45 Expired
US5608436A Inkjet printer printhead having equalized shelf length Performing Operations; Transporting 39 Expired
US5378137A Mask design for forming tapered inkjet nozzles Performing Operations; Transporting 27 Expired
US5563642A Inkjet printhead architecture for high speed ink firing chamber refill Performing Operations; Transporting 22 Expired
US5619236A Self-cooling printhead structure for inkjet printer with high density high frequency firing chambers Performing Operations; Transporting 10 Expired
US5213876A Flexible circuit card with laser-contoured VIAs and machined capacitors Emerging Cross-Sectional Technologies 8 Expired
US7511808B2 Analyte stages including tunable resonant cavities and Raman signal-enhancing structures Physics 3 Expired

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.