Charles D. Johnson
25Patents
5h-index
23Co-inventors
69Inventor score
Filing activity: May 21, 1984 → Nov 4, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4570670A | Valve | Emerging Cross-Sectional Technologies | 102 | Expired |
| US7216347B1 | Method and apparatus for prioritizing print jobs from multiple printer input channels | Physics | 85 | Expired |
| US7283272B2 | System and method for controlling a remote printer | Electricity | 13 | Expired |
| US8358440B2 | Color printer calibration for multiple mediums | Electricity | 10 | Active |
| US4975869A | Fast emulator using slow processor | Physics | 5 | Expired |
| US7589849B2 | Method and apparatus for providing printer recognition and management of a print job entity | Physics | 5 | Expired |
| US7177037B2 | Method and apparatus for processing print jobs identifying undefined print queues | Physics | 4 | Expired |
| US7170617B1 | Method and apparatus for determining how to process incoming print jobs | Physics | 3 | Expired |
| US7468802B1 | Method and apparatus for processing print jobs via parallel spooling and despooling operations | Physics | 3 | Expired |
| US7595907B2 | Method and apparatus for providing printer recognition and management of a print job entity | Physics | 3 | Active |
| US6871285B1 | Method, system and program for detecting communication code information | Electricity | 3 | Expired |
| US9292234B2 | Print job correction mechanism | Physics | 2 | Active |
| US8711386B2 | Utilizing virtually stored media snapshots for rasterizing print jobs | Physics | 1 | Active |
| US7646506B2 | Method and apparatus for determining how to process incoming print jobs | Physics | 1 | Active |
| US8542381B2 | Purging of print jobs from a print data path | Physics | 1 | Active |
| US8641357B2 | Track hoe attachment to load and unload pipe | Fixed Constructions | 1 | Active |
| US7605932B2 | System and method of implementing a job cancel broadcast notification and parallel processing of the request | Physics | 1 | Active |
| US8064077B2 | Automatic print job cancellation mechanism | Physics | 0 | Active |
| US10007469B2 | Virtual page generation mechanism | Physics | 0 | Active |
| US7177041B2 | Method and apparatus for detecting and processing print jobs that request backchannel data | Physics | 0 | Expired |
| US8599394B2 | Recovery from an out of storage condition at a rip spool for storing raster data | Physics | 0 | Active |
| US9047556B2 | Media determination for a print job from a rasterization process | Physics | 0 | Active |
| US8797562B2 | Page level recovery on print jobs for production printing systems | Physics | 0 | Active |
| US8836986B2 | Purging of print jobs from a print data path | Physics | 0 | Active |
| US8482755B2 | Print controller using a job despool token to control the release of print jobs stored in a rasterized job spool | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.