Inventor · Corvallis, OR, US

Kenneth E. Trueba

58Patents
27h-index
66Co-inventors
91Inventor score

Filing activity: Nov 13, 1987 → Jan 7, 2014

Most-cited inventions

PatentTitleAreaCited byStatus
US5278584A Ink delivery system for an inkjet printhead Performing Operations; Transporting 239 Expired
US6017117A Printhead with pump driven ink circulation Performing Operations; Transporting 237 Expired
US5387314A Fabrication of ink fill slots in thermal ink-jet printheads utilizing chemical micromachining Performing Operations; Transporting 152 Expired
US6003977A Bubble valving for ink-jet printheads Performing Operations; Transporting 116 Expired
US4882595A Hydraulically tuned channel architecture Performing Operations; Transporting 112 Expired
US5560837A Method of making ink-jet component Emerging Cross-Sectional Technologies 108 Expired
US5635968A Thermal inkjet printer printhead with offset heater resistors Performing Operations; Transporting 100 Expired
US7198044B2 Applicator for dispensing bioactive compositions and methods for using the same Human Necessities 61 Expired
US6684880B2 Applicator for dispensing bioactive compositions and methods for using the same Human Necessities 60 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
US5635966A Edge feed ink delivery thermal inkjet printhead structure and method of fabrication Performing Operations; Transporting 56 Expired
US5648805A Inkjet printhead architecture for high speed and high resolution printing Performing Operations; Transporting 51 Expired
US5167776A Thermal inkjet printhead orifice plate and method of manufacture Performing Operations; Transporting 50 Expired
US5594481A Ink channel structure for inkjet printhead Performing Operations; Transporting 49 Expired
US6000787A Solid state ink jet print head 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
US5648804A Compact inkjet substrate with centrally located circuitry and edge feed ink channels Performing Operations; Transporting 43 Expired
US5420627A Inkjet printhead Performing Operations; Transporting 41 Expired
US5608436A Inkjet printer printhead having equalized shelf length Performing Operations; Transporting 39 Expired
US5519423A Tuned entrance fang configuration for ink-jet printers Performing Operations; Transporting 37 Expired
US7490924B2 Drop generator for ultra-small droplets Performing Operations; Transporting 32 Active
US4829319A Plastic orifice plate for an ink jet printhead and method of manufacture Chemistry; Metallurgy 32 Expired
US6305790A Fully integrated thermal inkjet printhead having multiple ink feed holes per nozzle Performing Operations; Transporting 31 Expired

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