Frederick T. Mattern
78Patents
19h-index
34Co-inventors
84Inventor score
Filing activity: Dec 3, 1999 → Jun 24, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6722764B2 | Feed guidance and identification for ink stick | Performing Operations; Transporting | 54 | Expired |
| USD500785S1 | Ink stick for phase change ink jet printer | General | 54 | Expired |
| US6755517B2 | Alignment feature for solid ink stick | Performing Operations; Transporting | 43 | Expired |
| US6986570B2 | Feed guidance and identification for ink stick | Performing Operations; Transporting | 43 | Expired |
| USD453787S1 | Solid ink stick for solid ink printers | General | 42 | Expired |
| USD500516S1 | Ink stick for phase change ink jet printer | General | 39 | Expired |
| USD440248S | Solid ink stick for a color printer | General | 38 | Expired |
| USD436124S | Solid ink stick for a color printer | General | 32 | Expired |
| USD436989S | Solid ink stick for a color printer | General | 32 | Expired |
| USD453786S1 | Solid ink stick for solid ink printers | General | 29 | Expired |
| US6719419B2 | Feed channel keying for solid ink stick feed | Performing Operations; Transporting | 27 | Expired |
| US6739713B2 | Guide for solid ink stick feed | Physics | 24 | Expired |
| US6761444B2 | Channel keying for solid ink stick insertion | Performing Operations; Transporting | 24 | Expired |
| US6705710B2 | Load and feed apparatus for solid ink | Performing Operations; Transporting | 24 | Expired |
| US7063412B2 | Visible identification of solid ink stick | Performing Operations; Transporting | 24 | Expired |
| USD500783S1 | Ink stick for phase change ink jet printer | General | 19 | Expired |
| USD500784S1 | Ink stick for phase change ink jet printer | General | 19 | Expired |
| US6840612B2 | Guide for solid ink stick feed | Physics | 19 | Expired |
| US6530655B2 | Drip plate design for a solid ink printer | Performing Operations; Transporting | 19 | Expired |
| US6857732B2 | Visible identification of solid ink stick | Performing Operations; Transporting | 18 | Expired |
| USD505974S1 | Ink stick for phase change ink jet printer | General | 16 | Expired |
| US7066589B2 | Guide for solid ink stick feed | Physics | 16 | Expired |
| US6966644B2 | Guide for solid ink stick feed | Physics | 14 | Expired |
| USD505973S1 | Ink stick for phase change ink jet printer | General | 13 | Expired |
| USD506779S1 | Ink stick for phase change ink jet printer | General | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.