Amalkumar P. Ghosh
49Patents
10h-index
32Co-inventors
75Inventor score
Filing activity: Sep 27, 1996 → Feb 12, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6069443A | Passive matrix OLED display | Electricity | 155 | Expired |
| US6265820A | Heat removal system for use in organic light emitting diode displays having high brightness | Electricity | 67 | Expired |
| US7245065B2 | Reducing angular dependency in microcavity color OLEDs | Electricity | 33 | Expired |
| US5866978A | Matrix getter for residual gas in vacuum sealed panels | Electricity | 31 | Expired |
| US6060728A | Organic light emitting device structure and process | Electricity | 31 | Expired |
| US5771098A | Laser interferometric lithographic system providing automatic change of fringe spacing | Physics | 21 | Expired |
| US6608283B2 | Apparatus and method for solder-sealing an active matrix organic light emitting diode | Performing Operations; Transporting | 19 | Expired |
| US6888172B2 | Apparatus and method for encapsulating an OLED formed on a flexible substrate | Electricity | 18 | Expired |
| US6027388A | Lithographic structure and method for making field emitters | Electricity | 14 | Expired |
| US7304428B2 | Multilayered cathode structures having silver for OLED devices | Electricity | 10 | Expired |
| US9793252B2 | Method of integrating inorganic light emitting diode with oxide thin film transistor for display applications | Electricity | 5 | Active |
| US6844215B1 | Method of forming tapered drain-to-anode connectors in a back plane for an active matrix OLED device | Electricity | 4 | Expired |
| US10644239B2 | High precision, high resolution collimating shadow mask and method for fabricating a micro-display | Electricity | 3 | Active |
| US6166820A | Laser interferometric lithographic system providing automatic change of fringe spacing | Physics | 3 | Expired |
| US5959725A | Large area energy beam intensity profiler | Physics | 3 | Expired |
| US7745340B2 | Method of clearing electrical contact pads in thin film sealed OLED devices | Electricity | 2 | Expired |
| US10072328B2 | High-precision shadow-mask-deposition system and method therefor | Electricity | 2 | Active |
| US7121912B2 | Method of improving stability in OLED devices | Electricity | 2 | Expired |
| US10636969B2 | Apparatus and method of directly patterning high resolution active matrix organic light emitting diodes using high-resolution shadow mask | Electricity | 2 | Active |
| US8564187B2 | Color organic light-emitting diode display device | Electricity | 2 | Active |
| US10147906B2 | High efficacy seal for organic light emitting diode displays | Electricity | 2 | Active |
| US11035033B2 | Direct-deposition system including standoffs for controlling substrate-mask separation | Electricity | 1 | Active |
| US11275315B2 | High-precision shadow-mask-deposition system and method therefor | Electricity | 1 | Active |
| US7233026B2 | Light extraction from color changing medium layers in organic light emitting diode devices | Electricity | 1 | Expired |
| US9899456B2 | Large area OLED microdisplay and method of manufacturing same | Electricity | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.