Christopher Percival
25Patents
6h-index
28Co-inventors
69Inventor score
Filing activity: Jan 31, 1985 → Feb 11, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4829554A | Cellular mobile telephone system and method | Electricity | 237 | Expired |
| US6623429B2 | Hand-held non-contact tonometer | Human Necessities | 27 | Expired |
| US5301004A | Method and apparatus for determining the optical properties of a lens | Physics | 17 | Expired |
| US6669340B2 | Alignment system for an ophthalmic instrument | Human Necessities | 13 | Expired |
| US6749302B2 | Afocal position detection system and ophthalmic instrument employing said system | Human Necessities | 12 | Expired |
| US10319266B1 | Display panel with non-visible light detection | Physics | 11 | Active |
| USD369112S | Lensmeter | General | 6 | Expired |
| US9812494B2 | Methods and apparatus for improving micro-LED devices | Electricity | 4 | Active |
| US5446274A | Instructive display for assisting in centering an optical path element on a path | Physics | 3 | Expired |
| US9502595B2 | Methods and apparatus for improving micro-LED devices | Electricity | 3 | Active |
| US11579171B1 | Probe card for characterizing processes of submicron semiconductor device fabrication | Physics | 3 | Active |
| US10326052B1 | Light emitting diode with field enhanced contact | Electricity | 2 | Active |
| US10074774B2 | Micro-LED device | Electricity | 2 | Active |
| US10403678B2 | Methods and apparatus for improving micro-LED devices | Electricity | 2 | Active |
| US10177196B2 | Redundancy in inorganic light emitting diode displays | Electricity | 2 | Active |
| US10490699B2 | Micro-LED device | Electricity | 2 | Active |
| US10720468B2 | Redundancy in inorganic light emitting diode displays | Electricity | 1 | Active |
| US11112606B2 | Multiple layer projector for a head-mounted display | Electricity | 1 | Active |
| US11579182B1 | Probe card for efficient screening of highly-scaled monolithic semiconductor devices | Electricity | 0 | Active |
| US11099063B2 | Apparatus and method for profiling a beam of a light emitting semiconductor device | Physics | 0 | Active |
| US5602640A | Lensmeter accessory | Physics | 0 | Expired |
| US10712579B1 | Vortex linearization of micro-LED polarization | Electricity | 0 | Active |
| US10529537B1 | Electron flood lithography | Electricity | 0 | Active |
| US10854782B2 | Micro-LED device | Electricity | 0 | Active |
| US10753959B1 | Microspring probe card with insulation block | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.