USPTO Examiner CHOI WILLIAM C - Art Unit 2872

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19312300AIMING ASSISTANCE DEVICE AND OPTICAL SIGHTAugust 2025November 2025Allow200NoNo
19287753Rotating Diffuser for Improved Image QualityJuly 2025October 2025Allow200NoNo
19268902OPTICAL SYSTEMS FOR WIDE MAIN AND TELE IMAGINGJuly 2025October 2025Allow310YesNo
19258951HEAD-MOUNTED VR DEVICEJuly 2025November 2025Allow510NoNo
19214782REDUCING EFFECTS CAUSED BY FORMATION OF MULTIPLE FOCI IN A DEFORMABLE LENS DURING CHANGES OF APPLANATION OF SURFACES THEREOFMay 2025October 2025Allow510YesNo
19204545LARGE-APERTURE COMPACT SCANNING TELE CAMERASMay 2025June 2025Allow100NoNo
19000742LARGE-APERTURE COMPACT SCANNING TELE CAMERASDecember 2024February 2025Allow100NoNo
18972511EYEPIECE OPTICAL SYSTEM AND HEAD-MOUNTED DISPLAY DEVICEDecember 2024February 2025Allow200NoNo
18807934ORNAMENT WITH ELECTRONIC INK SCREENAugust 2024May 2025Abandon910NoNo
18718461LARGE-APERTURE COMPACT SCANNING TELE CAMERASJune 2024October 2024Allow400NoNo
18735929OPTICAL IMAGING SYSTEMJune 2024January 2026Allow1910NoNo
18661034LENS GROUP, AND NEAR-TO-EYE DISPLAY DEVICEMay 2024July 2024Allow200NoNo
18636165Dual-Layer Micro-ribbon MEMS Light ModulatorApril 2024January 2026Allow2100NoNo
18594695OPTICAL IMAGING SYSTEMMarch 2024July 2025Allow1720NoNo
18444470OPTICAL CONFIGURATIONS FOR HEAD-WORN SEE-THROUGH DISPLAYSFebruary 2024January 2025Allow1110NoNo
18434086EYEPIECE OPTICAL ASSEMBLY, SYSTEM AND DEVICEFebruary 2024March 2024Allow200NoNo
18433737ZOOM LENSFebruary 2024February 2026Allow2500NoNo
18433937OPTICAL IMAGING SYSTEMFebruary 2024January 2025Allow1110NoNo
18430611OPTICAL LENS ASSEMBLY AND ELECTRONIC DEVICEFebruary 2024February 2026Allow2500NoNo
18429181CONTROL METHOD FOR TINTABLE WINDOWSJanuary 2024July 2025Allow1720NoNo
18428610DEADFRONT ARTICLES WITH MULTI-LAYER OPTICAL STRUCTURES AND ASSOCIATED METHODSJanuary 2024March 2024Allow200NoNo
18418590OPTICAL IMAGING SYSTEMJanuary 2024January 2025Allow1210NoNo
18416925MACRO-TO-MICRO TWO-STAGE CAMERA LENS FOCUSING DEVICE BASED ON DIRECT-DRIVE AIR FLOATATION PLATFORMJanuary 2024April 2024Allow300NoNo
18411429SEMICONDUCTOR OPTICAL DEVICEJanuary 2024September 2025Allow2000NoNo
18408679IMAGE CAPTURING OPTICAL LENS SYSTEMJanuary 2024September 2024Allow800NoNo
18577612TERAHERTZ CARRIER-ENVELOPE PHASE SHIFTERJanuary 2024June 2024Allow500NoNo
18404661CONTROL METHOD FOR TINTABLE WINDOWSJanuary 2024August 2024Allow800NoNo
18404667OBSCURING BUS BARS IN ELECTROCHROMIC GLASS STRUCTURESJanuary 2024January 2026Allow2430NoNo
18398546IMAGE CAPTURING OPTICAL SYSTEM, IMAGE CAPTURING DEVICE AND ELECTRONIC DEVICEDecember 2023July 2024Allow700NoNo
18398409FREEFORM OPTICAL SUBSTRATES IN WAVEGUIDE DISPLAYSDecember 2023November 2024Allow1110YesNo
18399269IMAGE CAPTURING LENS ASSEMBLY, IMAGE CAPTURING DEVICE AND VEHICLE PHOTOGRAPHING TERMINALDecember 2023August 2024Allow800NoNo
18394713LINE-OF-SIGHT DETECTION DEVICE AND HEAD MOUNTED DISPLAY DEVICEDecember 2023April 2025Allow1511NoNo
18571497COHERENT BEAM COMBINATION SYSTEM AND CONTROL METHOD THEREOFDecember 2023February 2026Allow2600NoNo
18543741OPTICAL IMAGING SYSTEMDecember 2023September 2025Allow2120NoNo
18537816OPTICAL IMAGING LENSDecember 2023October 2025Allow2220NoNo
18534690OPTICAL LENS ASSEMBLYDecember 2023December 2025Allow2400NoNo
18523975STEPPED STRUCTURE OPTICAL FILTERNovember 2023June 2025Allow1810YesNo
18518323SEE-THROUGH COMPUTER DISPLAY SYSTEMSNovember 2023April 2025Allow1710NoNo
18512396INTEGRATION OF ELECTROCHROMIC FILMS ON A SUBSTRATENovember 2023February 2025Allow1510NoNo
18509503DISPLAY DEVICE AND METHOD FOR DRIVING THE SAMENovember 2023November 2025Allow2400NoNo
18507143ZOOM LENS, IMAGE PICKUP APPARATUS, AND IMAGE PICKUP SYSTEMNovember 2023October 2025Allow2300NoNo
18290400MULTI-SENSOR SYSTEM HAVING AN OPTICAL BEAM SPLITTERNovember 2023November 2025Allow2400NoNo
18505895Head-Mounted Electronic Device With Alignment SensorsNovember 2023July 2025Allow2020YesNo
18388477LENS BARREL AND CAMERA EQUIPPED WITH SAMENovember 2023November 2025Allow2500NoNo
18505185HEAD MOUNTED DISPLAY AND INFORMATION PROCESSING METHODNovember 2023September 2024Allow1000NoNo
18384895MICROSCOPY SYSTEM AND METHOD USING AN IMMERSION LIQUIDOctober 2023March 2026Allow2820YesNo
18556568DEVICE FOR PRODUCING A POLYCHROMATIC LIGHT BEAM BY COMBINING A PLURALITY OF INDIVIDUAL LIGHT BEAMSOctober 2023October 2025Allow2400NoNo
18381025LENS AND OVERMOLD METHOD OF MANUFACTUREOctober 2023March 2026Allow2910YesNo
18488327WATER INGRESS PROTECTION FOR ELECTRONIC DEVICE HINGEOctober 2023October 2025Allow2400NoNo
18486963HAPTIC SYSTEMS FOR HEAD-WORN COMPUTERSOctober 2023September 2024Allow1100NoNo
18486197CONTROLLING TRANSITIONS IN OPTICALLY SWITCHABLE DEVICESOctober 2023January 2025Allow1510YesNo
18485627CAMERA MODULE AND PORTABLE TERMINALOctober 2023July 2024Allow910NoNo
18373746ALIGNMENT METHOD AND TOOLSSeptember 2023September 2024Allow1210NoNo
18469338OBSERVATION OPTICAL SYSTEM AND OPTICAL APPARATUSSeptember 2023March 2026Allow3010NoNo
18282217WAVEFRONT MANIPULATOR FOR A HEAD-UP DISPLAY, OPTICAL ARRANGEMENT, AND HEAD-UP DISPLAYSeptember 2023February 2026Allow2910NoNo
18466521ZOOM LENS AND IMAGING APPARATUSSeptember 2023September 2025Allow2400NoNo
18549781METHOD FOR ELECTRICALLY CONTROLLING A FUNCTIONAL ELEMENT EMBEDDED IN A GLAZING UNITSeptember 2023February 2026Allow3010NoNo
18280901METALENS STACK ON WAVEGUIDE COMBINERS FOR AR/VR GLASSESSeptember 2023February 2026Allow3001YesNo
18549086PHOTO-MAGNETICALLY ACTUATED DEFORMABLE MIRRORSeptember 2023October 2025Allow2500YesNo
18454819LENS BARREL AND IMAGING DEVICEAugust 2023March 2026Allow3010NoNo
18237244WEARABLE ELECTRONIC DEVICE FOR ADJUSTING DISTANCE BETWEEN LENSESAugust 2023December 2025Allow2810YesNo
18235107Optical Data InsertionAugust 2023February 2026Allow3010YesNo
18451825OPTICAL DISPLAY DEVICEAugust 2023September 2025Allow2500NoNo
18448468LIGHT PATH CONTROL DEVICE AND DISPLAY DEVICE INCLUDING THE SAMEAugust 2023September 2025Allow2500NoNo
18448025Environmentally Isolated Waveguide DisplayAugust 2023January 2025Abandon1810NoNo
18230755Method for Determining a Required Adaption of a Bias of an Electro-Optic ModulatorAugust 2023February 2026Allow3010NoNo
18273478METHODS AND APPARATUSES FOR SPATIALLY FILTERING OPTICAL PULSESJuly 2023December 2025Allow2910NoNo
18273487REDUCING EFFECTS CAUSED BY FORMATION OF MULTIPLE FOCI IN A DEFORMABLE LENS DURING CHANGES OF APPLANATION OF SURFACES THEREOFJuly 2023February 2025Allow1900NoNo
18220917WINDSHIELD, DISPLAY SYSTEM, AND REFLECTIVE POLARIZERJuly 2023August 2025Allow2500NoNo
18220279OPTICAL LENS ASSEMBLY AND HEAD-MOUNTED ELECTRONIC DEVICEJuly 2023August 2025Allow2500NoNo
18344156LENS DRIVING DEVICEJune 2023January 2025Allow1810NoNo
18343167META OPTICAL DEVICE AND ELECTRONIC APPARATUS INCLUDING THE SAMEJune 2023August 2024Allow1410NoNo
18339894MULTIPLE DEGREE OF FREEDOM HINGE SYSTEMS AND EYEWEAR DEVICES COMPRISING SUCH HINGE SYSTEMSJune 2023June 2024Allow1210YesNo
18337289FREEFORM OPTICAL SUBSTRATES IN WAVEGUIDE DISPLAYSJune 2023March 2024Allow900NoNo
18255672LINEAR RESONANCE SCANNING APPARATUS AND METHOD OF SCANNINGJune 2023August 2025Allow2600NoNo
18325241SYSTEMS AND METHODS FOR CONTROLLING A DYNAMIC DISPLAYMay 2023January 2025Allow1911NoNo
18254448MULTI-VIEW REFLECTOR MICROSCOPEMay 2023February 2026Allow3310NoNo
18038255CAMERA MODULEMay 2023January 2026Allow3210NoNo
18200038Laptop MagnifierMay 2023August 2025Allow2600NoNo
18198131CAMERA MODULEMay 2023July 2025Allow2600NoNo
18198029DISTURBANCE REJECTION FOR LASER BEAM SCANNING DISPLAYMay 2023July 2024Allow1410YesNo
18314021DIMMABLE WINDOW SYSTEMS AND METHODSMay 2023September 2025Allow2821NoNo
18313514OPTICAL IMAGING SYSTEMMay 2023June 2024Allow1310NoNo
18143102TRANSMITTING-RECEIVING COAXIAL LASER RANGING DEVICE AND OPTICAL MODULEMay 2023January 2026Allow3210YesNo
18310603IMAGE PICKING-UP SYSTEM, IMAGE CAPTURING APPARATUS AND ELECTRONIC DEVICEMay 2023April 2024Allow1100NoNo
18140412LENS ASSEMBLIESApril 2023October 2025Allow3010NoNo
17927457Closure MechanismApril 2023June 2025Allow3100NoNo
18305572MULTICOATED TUNABLE OPTICAL DEVICESApril 2023July 2025Allow2700NoNo
18303643Optical Component and Light Control Film Including SameApril 2023July 2025Allow2700NoNo
18295693IMAGING LENSApril 2023November 2025Allow3210NoNo
18030114INSTRUMENT FOR MANIPULATING A LIGHT WAVEFRONT AND METHOD FOR MANIPULATING A LIGHT WAVEFRONTApril 2023January 2025Allow2200NoNo
18193081ADJUSTMENT DEVICE AND ELECTRONIC APPARATUS SYSTEMMarch 2023November 2025Allow3110NoNo
18247131OPTICAL MODULE AND ELECTRONIC DEVICEMarch 2023December 2025Allow3310NoNo
18247047OPTICAL SYSTEM AND HEAD MOUNTED DISPLAYMarch 2023November 2025Allow3210YesNo
18190458MULTI-FUNCTION METASURFACE BEAM SPLITTERMarch 2023April 2025Allow2510NoNo
18028293CONFIGURATION ASSOCIATED WITH MEDIA DISPLAY OF A FACILITYMarch 2023October 2024Allow1910NoNo
18185411IMAGE OUTPUT PANEL AND HEAD-UP DISPLAYMarch 2023June 2025Allow2700NoNo
18044961THIN FILM TYPE IMAGE SLICER DEVICE AND OPERATING SYSTEM THEREOFMarch 2023May 2025Allow2700NoNo
18178739OPTICAL IMAGING SYSTEMMarch 2023November 2023Allow910NoNo
18116786OPTICAL SIGNAL DETECTION DEVICE, GEL UNIT, AND METHOD FOR MANUFACTURING GEL UNITMarch 2023June 2025Allow2700NoNo

Appeals Overview

No appeal data available for this record. This may indicate that no appeals have been filed or decided for applications in this dataset.

Examiner CHOI, WILLIAM C - Prosecution Strategy Guide

Executive Summary

Examiner CHOI, WILLIAM C works in Art Unit 2872 and has examined 1,291 patent applications in our dataset. With an allowance rate of 96.0%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 20 months.

Allowance Patterns

Examiner CHOI, WILLIAM C's allowance rate of 96.0% places them in the 86% percentile among all USPTO examiners. This examiner is more likely to allow applications than most examiners at the USPTO.

Office Action Patterns

On average, applications examined by CHOI, WILLIAM C receive 0.83 office actions before reaching final disposition. This places the examiner in the 6% percentile for office actions issued. This examiner issues significantly fewer office actions than most examiners.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CHOI, WILLIAM C is 20 months. This places the examiner in the 93% percentile for prosecution speed. Applications move through prosecution relatively quickly with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +3.3% benefit to allowance rate for applications examined by CHOI, WILLIAM C. This interview benefit is in the 25% percentile among all examiners. Recommendation: Interviews provide a below-average benefit with this examiner.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 43.5% of applications are subsequently allowed. This success rate is in the 94% percentile among all examiners. Strategic Insight: RCEs are highly effective with this examiner compared to others. If you receive a final rejection, filing an RCE with substantive amendments or arguments has a strong likelihood of success.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 61.1% of cases where such amendments are filed. This entry rate is in the 86% percentile among all examiners. Strategic Recommendation: This examiner is highly receptive to after-final amendments compared to other examiners. Per MPEP § 714.12, after-final amendments may be entered "under justifiable circumstances." Consider filing after-final amendments with a clear showing of allowability rather than immediately filing an RCE, as this examiner frequently enters such amendments.

Petition Practice

When applicants file petitions regarding this examiner's actions, 49.2% are granted (fully or in part). This grant rate is in the 45% percentile among all examiners. Strategic Note: Petitions show below-average success regarding this examiner's actions. Ensure you have a strong procedural basis before filing.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 1.2% of allowed cases (in the 69% percentile). This examiner makes examiner's amendments more often than average to place applications in condition for allowance (MPEP § 1302.04).

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.6% of allowed cases (in the 57% percentile). This examiner issues Quayle actions more often than average when claims are allowable but formal matters remain (MPEP § 714.14).

Prosecution Strategy Recommendations

Based on the statistical analysis of this examiner's prosecution patterns, here are tailored strategic recommendations:

  • Consider after-final amendments: This examiner frequently enters after-final amendments. If you can clearly overcome rejections with claim amendments, file an after-final amendment before resorting to an RCE.
  • RCEs are effective: This examiner has a high allowance rate after RCE compared to others. If you receive a final rejection and have substantive amendments or arguments, an RCE is likely to be successful.

Relevant MPEP Sections for Prosecution Strategy

  • MPEP § 713.10: Examiner interviews - available before Notice of Allowance or transfer to PTAB
  • MPEP § 714.12: After-final amendments - may be entered "under justifiable circumstances"
  • MPEP § 1002.02(c): Petitionable matters to Technology Center Director
  • MPEP § 1004: Actions requiring primary examiner signature (allowances, final rejections, examiner's answers)
  • MPEP § 1207.01: Appeal conferences - mandatory for all appeals
  • MPEP § 1214.07: Reopening prosecution after appeal

Important Disclaimer

Not Legal Advice: The information provided in this report is for informational purposes only and does not constitute legal advice. You should consult with a qualified patent attorney or agent for advice specific to your situation.

No Guarantees: We do not provide any guarantees as to the accuracy, completeness, or timeliness of the statistics presented above. Patent prosecution statistics are derived from publicly available USPTO data and are subject to data quality limitations, processing errors, and changes in USPTO practices over time.

Limitation of Liability: Under no circumstances will IronCrow AI be liable for any outcome, decision, or action resulting from your reliance on the statistics, analysis, or recommendations presented in this report. Past prosecution patterns do not guarantee future results.

Use at Your Own Risk: While we strive to provide accurate and useful prosecution statistics, you should independently verify any information that is material to your prosecution strategy and use your professional judgment in all patent prosecution matters.