Steven W. Steinfield
49Patents
20h-index
69Co-inventors
88Inventor score
Filing activity: Apr 2, 1992 → Apr 30, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5278584A | Ink delivery system for an inkjet printhead | Performing Operations; Transporting | 239 | Expired |
| US5946012A | Reliable high performance drop generator for an inkjet printhead | Performing Operations; Transporting | 89 | Expired |
| US5874974A | Reliable high performance drop generator for an inkjet printhead | Performing Operations; Transporting | 59 | Expired |
| US5635966A | Edge feed ink delivery thermal inkjet printhead structure and method of fabrication | Performing Operations; Transporting | 56 | 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 |
| US5638101A | High density nozzle array for inkjet printhead | Performing Operations; Transporting | 49 | Expired |
| US5594481A | Ink channel structure for inkjet printhead | Performing Operations; Transporting | 49 | Expired |
| US6244696A | Inkjet print cartridge design for decreasing ink shorts by using an elevated substrate support surface to increase adhesive sealing of the printhead from ink penetration | Performing Operations; Transporting | 46 | Expired |
| US5648804A | Compact inkjet substrate with centrally located circuitry and edge feed ink channels | Performing Operations; Transporting | 43 | Expired |
| US6332677A | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer | Performing Operations; Transporting | 43 | Expired |
| US5420627A | Inkjet printhead | Performing Operations; Transporting | 41 | Expired |
| US5984464A | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer | Performing Operations; Transporting | 37 | Expired |
| US6692100B2 | Cleaning apparatus and method of assembly therefor for cleaning an inkjet print head | Performing Operations; Transporting | 31 | Expired |
| US5450113A | Inkjet printhead with improved seal arrangement | Performing Operations; Transporting | 31 | Expired |
| US5648806A | Stable substrate structure for a wide swath nozzle array in a high resolution inkjet printer | Performing Operations; Transporting | 30 | Expired |
| US6508552B1 | Printer having precision ink drying capability and method of assembling the printer | Performing Operations; Transporting | 29 | Expired |
| US6733139B2 | Projector with narrow-spectrum light source to complement broad-spectrum light source | Electricity | 26 | Expired |
| US5563642A | Inkjet printhead architecture for high speed ink firing chamber refill | Performing Operations; Transporting | 22 | Expired |
| US6702894B2 | Fluid ejection cartridge and system for dispensing a bioactive substance | Human Necessities | 22 | Expired |
| US5568171A | Compact inkjet substrate with a minimal number of circuit interconnects located at the end thereof | Performing Operations; Transporting | 20 | Expired |
| US6179414A | Ink delivery system for an inkjet printhead | Performing Operations; Transporting | 19 | Expired |
| US6932502B2 | Mixing apparatus | Performing Operations; Transporting | 17 | Expired |
| US6457821B1 | Filter carrier for protecting a filter from being blocked by air bubbles in an inkjet printhead | Performing Operations; Transporting | 15 | Expired |
| US6378984B1 | Reinforcing features in flex circuit to provide improved performance in a thermal inkjet printhead | Performing Operations; Transporting | 13 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.