Inventor · disambiguated record

Kai-Han Chang

Also filed as: CHANG KAI · CHANG KAI-HAN

79 granted patents·19 pending applications·175 citations·filing 2018–2025

98Inventor score

Technology areasB60K G02B G02F G06F G03H

Files withGM GLOBAL TECH OPERATIONS LLC90 META PLATFORMS TECH LLC5 UNIV KENT STATE OHIO2 HIMAX TECH LTD1

Top patents by PatentIndex Score

98 records

0197US11702096B1Systems and methods for providing a graphical representation of following distances to an augmented reality vehicle heads-up display systemGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jul 18, 2023·6 cites·20 claims
0297US11697346B1Lane position in augmented reality head-up display systemGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jul 11, 2023·7 cites·16 claims
0397US10996481B1Head-up display calibrationGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted May 4, 2021·17 cites·18 claims
0496US11766938B1Augmented reality head-up display for overlaying a notification symbol over a visually imperceptible objectGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Sep 26, 2023·4 cites·20 claims
0596US11699250B1System and method for low visibility drivingGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jul 11, 2023·11 cites·20 claims
0696US10747314B1Tracking system with infrared cameraGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Aug 18, 2020·25 cites·20 claims
0795US11557234B1Windshield zone dimming and augmented reality head up displayGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jan 17, 2023·7 cites·20 claims
0895US10880529B2Speckle reduction with image ditheringGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Dec 29, 2020·11 cites·10 claims
0995US10860093B1Eye location tracking device integrated with head-up displayGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Dec 8, 2020·10 cites·20 claims
1094US11699368B1Head-up display for accommodating color vision deficienciesGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jul 11, 2023·3 cites·20 claims
1194US11467415B1Viewer input-based control in a multi-image augmented reality head up display system in a vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Oct 11, 2022·3 cites·20 claims
1293US11858349B1Head-up display providing a gamified experience to a driver during calibration modeGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jan 2, 2024·3 cites·20 claims
1393US11798240B2System and method for social networking using an augmented reality displayGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Oct 24, 2023·2 cites·16 claims
1492US11654771B1Multi-view display device for a co-pilot application of a motor vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 23, 2023·2 cites·20 claims
1592US11572014B1Reducing animal vehicle collisionsGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Feb 7, 2023·2 cites·20 claims
1692US10926638B1Method and apparatus that reformats content of eyeboxGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Feb 23, 2021·9 cites·10 claims
1791US11971544B2Hybrid augmented reality head-up display for creating an edge-to-edge augmented reality viewGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Apr 30, 2024·2 cites·19 claims
1891US11589017B1Ground line monitoring systemGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Feb 21, 2023·2 cites·17 claims
1990US11645038B1Augmented reality head-up display for audio event awarenessGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted May 9, 2023·2 cites·20 claims
2090US10427602B1Optical system for enhancing display viewing comfortGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Oct 1, 2019·9 cites·6 claims
2190US10267960B1Cloaking device and apparatusGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Apr 23, 2019·7 cites·20 claims
2288US12249122B2Holographic display calibration using machine learningGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Mar 11, 2025·1 cites·20 claims
2388US11106044B2Eye height based virtual image alignment for head-up displayGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Aug 31, 2021·6 cites·21 claims
2487US11024056B2Image processing for eye location identificationGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Jun 1, 2021·6 cites·20 claims
2587US10996480B1Head-up display calibrationGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted May 4, 2021·4 cites·17 claims
2686US12090850B2Head-up display with adaptive color paletteGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Sep 17, 2024·1 cites·20 claims
2785US11630302B1Driving guidance system for a motor vehicle having an augmented reality head up displayGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Apr 18, 2023·1 cites·20 claims
2883US11275243B2Hologram replicator assemblies for head up displays including continuous transmission neutral density filters and corrective leveling elementsGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted Mar 15, 2022·3 cites·18 claims
2983US10996470B2Head-up display light trapGM GLOBAL TECH OPERATIONS LLC·Filed 2019·Granted May 4, 2021·3 cites·8 claims
3082US11735138B2Dual image plane HUD with automated illuminance setting for AR graphics displayed in far virtual image planeGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Aug 22, 2023·1 cites·19 claims
3182US11579340B2Self-cleaning system for displays using light emitting diodes emitting invisible violet lightGM GLOBAL TECH OPERATIONS LLC·Filed 2020·Granted Feb 14, 2023·1 cites·19 claims
3281US11762195B2Holographic display system with conjugate image removal for a motor vehicleGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Sep 19, 2023·1 cites·5 claims
3380US10816816B2Tunable film apparatusGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Oct 27, 2020·1 cites·6 claims
3476US10629852B2Microlens for an OLED display deviceGM GLOBAL TECH OPERATIONS LLC·Filed 2018·Granted Apr 21, 2020·2 cites·20 claims
3570US12393074B2Dimming devices with pixelated liquid crystal physical gelsMETA PLATFORMS TECH LLC·Filed 2023·Granted Aug 19, 2025·0 cites·17 claims
3669US12259616B1Heliconical liquid crystal polarization hologram and device including the sameMETA PLATFORMS TECH LLC·Filed 2023·Granted Mar 25, 2025·0 cites·15 claims
3766US12287496B2System for generating floating image displayGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Apr 29, 2025·0 cites·20 claims
3866US12174400B2Multi-perspective three-dimensional floating image displayGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Dec 24, 2024·0 cites·20 claims
3966US12011999B2Holographic display calibration by holographic phase modulationGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jun 18, 2024·0 cites·14 claims
4065US12352986B2Multi-perspective three-dimensional floating image display with touch functionGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jul 8, 2025·0 cites·20 claims
4164US2025362145A1Hybrid augmented navigation systemGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Application pending·0 cites
4264US2025324020A1Full color holographic projector with variable virtual image distance using single coherent light sourceGM GLOBAL TECH OPERATIONS LLC·Filed 2024·Application pending·0 cites
4363US2025314936A1Passive drive scheme for localized dimmingMETA PLATFORMS TECH LLC·Filed 2025·Application pending·0 cites
4461US11938821B2User interaction with 360 degree 3D holographic displayGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Mar 26, 2024·0 cites·19 claims
4561US11898867B2Recorded route replay on an augmented reality head-up display applicationGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Feb 13, 2024·0 cites·20 claims
4660US12345897B2Glare mitigation module for a head-up display systemGM GLOBAL TECH OPERATIONS LLC·Filed 2022·Granted Jul 1, 2025·0 cites·19 claims
4760US12111469B2Polarization adaptive waveguide HUDGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Oct 8, 2024·0 cites·20 claims
4860US11808599B2Route recording with real-time annotation and re-display systemGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted Nov 7, 2023·0 cites·16 claims
4960US11662811B2Holographic display systemGM GLOBAL TECH OPERATIONS LLC·Filed 2021·Granted May 30, 2023·0 cites·20 claims
5060US11434426B2Fast flexoelectro-optic switching based on bimesogen-doped and polymer-stabilized vertical standing helix modeUNIV KENT STATE OHIO·Filed 2018·Granted Sep 6, 2022·0 cites·19 claims

Showing the top 50 of 98 patent records by PatentIndex Score.

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →