Thomas K. Hilbert
24Patents
11h-index
46Co-inventors
75Inventor score
Filing activity: Oct 31, 1977 → Jan 14, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4173405A | Developer distribution apparatus | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4671207A | Magnetic brush development apparatus | Physics | 26 | Expired |
| US4887132A | Electrographic development apparatus having a ribbon blender | Physics | 17 | Expired |
| US4699495A | Electrographic development apparatus having coordinated gate mechanism and wiper | Physics | 16 | Expired |
| US5148220A | Toning station drive for image-forming apparatus | Emerging Cross-Sectional Technologies | 16 | Expired |
| US5196887A | Image forming apparatus having a magnetic brush toning station | Physics | 13 | Expired |
| US5325161A | Device for developing an electrostatic image on an image member | Physics | 12 | Expired |
| US5701550A | Method and apparatus for controlling charge on toner in a toning station | Physics | 12 | Expired |
| US5162854A | Image forming apparatus having at least two toning stations | Physics | 12 | Expired |
| US5606404A | Toner development station with non-conductive skive | Physics | 12 | Expired |
| US5227848A | Developer flow rate regulation for an electrophotographic toning roller | Physics | 11 | Expired |
| US6571077B2 | Electrostatic image developing method and apparatus using a drum photoconductor and hard magnetic carriers | Physics | 11 | Expired |
| US5347347A | Apparatus for applying toner to an electrostatic image having improved developer flow | Physics | 11 | Expired |
| US4442790A | Magnetic brush development apparatus | Physics | 10 | Expired |
| US5291259A | Image forming apparatus having toner cleaning device | Physics | 10 | Expired |
| US6385415B1 | Development station for a reproduction apparatus | Physics | 9 | Expired |
| US5339140A | Method and apparatus for control of toner charge | Physics | 9 | Expired |
| US5025287A | Development apparatus having dual interleaving paddle mixers | Performing Operations; Transporting | 8 | Expired |
| US5640656A | Method of toning an electrostatic image using a rotatable magnetic core brush | Physics | 7 | Expired |
| US5300988A | Toning station for selectively applying toner to an electrostatic image | Physics | 5 | Expired |
| US5140936A | Development apparatus having means for partially skiving magnetic developer | Physics | 3 | Expired |
| US6480686B2 | Development station for a reproduction apparatus | Physics | 3 | Expired |
| US4987853A | Magnetic brush development apparatus | Physics | 2 | Expired |
| US6801739B2 | Toning station intermediate bearing cap and tension assembly | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.