Frank Hacknauer
15Patents
11h-index
12Co-inventors
65Inventor score
Filing activity: Aug 3, 1977 → Jul 29, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5080340A | Modular finisher for a reproduction apparatus | Physics | 135 | Expired |
| US5108082A | Z-folder for a reproduction apparatus finisher | Physics | 19 | Expired |
| US5132732A | Dual axis displacement lifting mechanism for a development apparatus | Physics | 19 | Expired |
| US4997016A | Receiving apparatus for a toner container and toner container therefor | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5263708A | Paper-guiding device in a finisher unit for copy sheets | Performing Operations; Transporting | 17 | Expired |
| US5108081A | Saddle stitcher for a reproduction apparatus finisher | Physics | 17 | Expired |
| US4899690A | Container for electrostatographic toner or developer | Physics | 17 | Expired |
| USD252557S | Toner container | General | 15 | Expired |
| US4972887A | Container for particulate material | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5084739A | Self-loading cleaning blade and holder therefor | Physics | 13 | Expired |
| US4690096A | Magnetic brush development apparatus having a gating and metering mechanism | Physics | 11 | Expired |
| USD320044S | Toner bottle | General | 9 | Expired |
| USD320042S | Toner bottle | General | 8 | Expired |
| US5488453A | Operator control interface mounting mechanism | Emerging Cross-Sectional Technologies | 7 | Expired |
| USD320043S | Toner bottle | General | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.