Peter Chapman
28Patents
7h-index
12Co-inventors
66Inventor score
Filing activity: Sep 7, 1979 → Nov 29, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7000580B1 | Control valves with integrated check valves | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US8364488B2 | Voice models for document narration | Physics | 17 | Active |
| US8346557B2 | Systems and methods document narration | Physics | 14 | Active |
| US8352269B2 | Systems and methods for processing indicia for document narration | Physics | 12 | Active |
| US8588528B2 | Systems and methods for displaying scanned images with overlaid text | Physics | 12 | Active |
| US4281275A | Circuit for driving deflection coil | Electricity | 10 | Expired |
| US9463386B1 | State machine scripting in computer-implemented games | Physics | 7 | Active |
| US6840025B1 | Depositing a stack of flexible articles | Performing Operations; Transporting | 7 | Expired |
| US8498867B2 | Systems and methods for selection and use of multiple characters for document narration | Physics | 7 | Active |
| US8793133B2 | Systems and methods document narration | Physics | 6 | Active |
| US8359202B2 | Character models for document narration | Physics | 6 | Active |
| USD533551S1 | Enclosure for a handheld computer | General | 5 | Expired |
| US8903723B2 | Audio synchronization for document narration with user-selected playback | Physics | 5 | Active |
| US8370151B2 | Systems and methods for multiple voice document narration | Physics | 5 | Active |
| US7699031B2 | Timing phaser with offset spool valve | Mechanical Engineering; Lighting; Heating | 5 | Active |
| USD491801S1 | Multipack | General | 4 | Expired |
| US8392186B2 | Audio synchronization for document narration with user-selected playback | Physics | 4 | Active |
| US8694789B2 | System and method for generating a non-repudiatable record of a data stream | Electricity | 4 | Active |
| US8498866B2 | Systems and methods for multiple language document narration | Physics | 4 | Active |
| US8954328B2 | Systems and methods for document narration with multiple characters having multiple moods | Physics | 3 | Active |
| US10088976B2 | Systems and methods for multiple voice document narration | Physics | 2 | Active |
| US7752449B1 | System and method for generating a non-repudiatable record of a data stream | Electricity | 2 | Active |
| US9218680B2 | Systems and methods for rendering graphical content and glyphs | Physics | 1 | Active |
| US9478219B2 | Audio synchronization for document narration with user-selected playback | Physics | 1 | Active |
| US9821230B2 | Data-driven state machine for user interactive displays | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.