USPTO Examiner CHANG LI WU - Art Unit 2124

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19035231METHOD FOR CONVERTING NEURAL NETWORKJanuary 2025November 2025Allow1020YesNo
19023430UNMANNED AERIAL VEHICLE IDENTIFICATION METHOD BASED ON BLIND SOURCE SEPARATION AND DEEP LEARNINGJanuary 2025April 2025Allow300NoNo
18900506RELATIVE MARGIN FOR CONTRASTIVE LEARNINGSeptember 2024December 2024Allow300YesNo
18604152Context Driven Routine Prediction AssistanceMarch 2024September 2025Allow1910YesNo
18418424CORRELATIONS BETWEEN WORKLOAD CHARACTERISTICS AND ELAPSED TIMESJanuary 2024March 2025Allow1400NoNo
18394019GENERATIVE MACHINE LEARNING SYSTEMS FOR GENERATING STRUCTURAL INFORMATION REGARDING CHEMICAL COMPOUNDDecember 2023June 2025Allow1820YesNo
18520192EXECUTING A GENETIC ALGORITHM ON A LOW-POWER CONTROLLERNovember 2023April 2025Allow1620YesNo
18519123SYSTEMS, APPARATUSES AND METHODS FOR SENSING FETAL ACTIVITYNovember 2023March 2025Abandon1610NoNo
18385226System and Methods for Achieving Orthogonal Control of Non-Orthogonal Qubit ParametersOctober 2023August 2024Allow1000YesNo
18375006SYSTEMS AND METHODS FOR AUTOREGRESSIVE RECURRENT NEURAL NETWORKS FOR IDENTIFYING ACTIONABLE VITAL ALERTSSeptember 2023July 2024Allow1020YesNo
18244585MACHINE LEARNING NETWORKS, ARCHITECTURES AND TECHNIQUES FOR DETERMINING OR PREDICTING DEMAND METRICS IN ONE OR MORE CHANNELSSeptember 2023March 2025Allow1820NoNo
18357554SYSTEM AND METHOD FOR EFFICIENT EVOLUTION OF DEEP CONVOLUTIONAL NEURAL NETWORKS USING FILTER-WISE RECOMBINATION AND PROPAGATED MUTATIONSJuly 2023August 2024Allow1300NoNo
18349089NEURAL NETWORKS WITH SWITCH LAYERSJuly 2023October 2023Allow300NoNo
18348217CUSTOMIZED PREDICTIVE ANALYTICAL MODEL TRAININGJuly 2023April 2025Allow2110NoNo
18333437DEVICES AND METHODS FOR FORMING OPTICAL TRAPS FOR SCALABLE TRAPPED ATOM COMPUTINGJune 2023October 2023Allow410YesNo
18265715SYNAPTIC WEIGHT TRAINING METHOD, TARGET IDENTIFICATION METHOD, ELECTRONIC DEVICE AND MEDIUMJune 2023February 2024Allow810NoNo
18205434SENSE-PLUS-COMPUTE QUANTUM-STATE CARRIERSJune 2023December 2024Allow1810NoNo
18314628NETWORK MANAGEMENT BASED ON MODELING OF CASCADING EFFECT OF FAILUREMay 2023August 2025Allow2720NoNo
18135259LEARNING AND DEPLOYING COMPRESSION OF RADIO SIGNALSApril 2023January 2025Allow2110YesNo
18295153COMPUTER-BASED SYSTEMS CONFIGURED FOR DETECTING AND SPLITTING DATA TYPES IN A DATA FILE AND METHODS OF USE THEREOFApril 2023September 2024Allow1800NoNo
18190874METHOD AND DEVICE FOR STUDENT TRAINING NETWORKS WITH TEACHER NETWORKSMarch 2023March 2025Allow2410NoNo
18114852COMPUTERIZED ENGINES AND GRAPHICAL USER INTERFACES FOR CUSTOMIZING AND VALIDATING FORECASTING MODELSFebruary 2023June 2023Allow300NoNo
18174394AUGMENTED RECURRENT NEURAL NETWORK WITH EXTERNAL MEMORYFebruary 2023June 2024Allow1600NoNo
18171078SYSTEMS AND METHODS FOR AUTOREGRESSIVE RECURRENT NEURAL NETWORKS FOR IDENTIFYING ACTIONABLE VITAL ALERTSFebruary 2023July 2023Allow400YesNo
18108040MACHINE LEARNING NETWORKS, ARCHITECTURES AND TECHNIQUES FOR DETERMINING OR PREDICTING DEMAND METRICS IN ONE OR MORE CHANNELSFebruary 2023July 2023Allow510NoNo
18102402APPARATUS AND METHODS FOR GAUSSIAN BOSON SAMPLINGJanuary 2023January 2024Allow1200NoNo
18159136ANOMALY SCORE ADJUSTMENT ACROSS ANOMALY GENERATORSJanuary 2023July 2025Abandon3010NoNo
18158182METHOD AND COMPUTING SYSTEM FOR MODELLING A PRIMATE BRAINJanuary 2023September 2024Allow2000NoNo
18092704METHOD AND SYSTEM FOR PREDICTING A GEOGRAPHIC LOCATION OF A NETWORK ENTITYJanuary 2023July 2024Allow1800NoNo
18004013Methods, Electronic Devices, and Computer-Readable Media for Training, and Processing Data Through, a Spiking Neuron NetworkDecember 2022November 2023Allow1120NoNo
18013598QUANTUM DATA ERASURE METHOD, SYSTEM AND DEVICE, AND READABLE STORAGE MEDIUMDecember 2022July 2023Allow710NoNo
18012297Method And Apparatus For Generating Weather Data Based On Machine LearningDecember 2022September 2023Allow910YesNo
18145273SYSTEM AND METHOD FOR GENERATING TRAINING DATA FOR MACHINE LEARNING CLASSIFIERDecember 2022December 2024Allow2420NoNo
18069637METHOD FOR MANAGING TRAINING DATADecember 2022December 2024Abandon2320NoNo
18080986QUANTUM TOMOGRAPHY AND PHOTON SOURCE OPTIMIZATIONDecember 2022August 2024Allow2010YesNo
18008500HYPERPARAMETER ADJUSTMENT DEVICE, NON-TRANSITORY RECORDING MEDIUM IN WHICH HYPERPARAMETER ADJUSTMENT PROGRAM IS RECORDED, AND HYPERPARAMETER ADJUSTMENT PROGRAMDecember 2022September 2024Allow2210NoNo
18070442INTELLIGENT CONTROL WITH HIERARCHICAL STACKED NEURAL NETWORKSNovember 2022June 2024Allow1800NoNo
17990183TEMPORAL PROCESSING SCHEME AND SENSORIMOTOR INFORMATION PROCESSINGNovember 2022June 2024Allow1920YesNo
17978491REINFORCEMENT LEARNING TECHNIQUES FOR NETWORK-BASED TRANSFER LEARNINGNovember 2022March 2023Allow510NoNo
17967147SYSTEM AND METHOD FOR BUILDING PREDICTIVE MODEL FOR SYNTHESIZING DATAOctober 2022February 2024Allow1610NoNo
17938131GENERATING AND MANAGING DEEP TENSOR NEURAL NETWORKSOctober 2022January 2024Allow1510YesNo
17894798Training network with discrete weight valuesAugust 2022February 2025Allow2920YesNo
17801283TURBULENCE FIELD UPDATE METHOD AND APPARATUS, AND RELATED DEVICE THEREOFAugust 2022June 2023Allow1010YesNo
17890843SEQUENCE-BASED ANOMALY DETECTION WITH HIERARCHICAL SPIKING NEURAL NETWORKSAugust 2022September 2025Allow3700NoNo
17859347DEVICE FOR OPTICALLY TRANSMITTING AND RECEIVING IMAGESJuly 2022February 2025Allow3220NoNo
17805730GROUP OF NEURAL NETWORKS ENSURING INTEGRITYJune 2022November 2023Allow1710NoNo
17804621MACHINE LEARNING TECHNIQUE WITH TARGETED FEATURE SETS FOR CATEGORICAL ANOMALY DETECTIONMay 2022April 2023Allow1010NoNo
17658462SIMPLIFICATION OF SPIKING NEURAL NETWORK MODELSApril 2022January 2024Allow2110NoNo
17709704FEATURE SEGMENTATION-BASED ENSEMBLE LEARNING FOR CLASSIFICATION AND REGRESSIONMarch 2022October 2025Allow4210NoNo
17710454METHOD AND SYSTEM FOR GENERATING CONVERSATION SUMMARYMarch 2022April 2023Allow1220NoNo
17672543REPRESENTING A NEURAL NETWORK UTILIZING PATHS WITHIN THE NETWORK TO IMPROVE A PERFORMANCE OF THE NEURAL NETWORKFebruary 2022March 2024Allow2520NoNo
17649993CORRELATIONS BETWEEN WORKLOAD CHARACTERISTICS AND ELAPSED TIMESFebruary 2022November 2023Allow2121NoNo
17620451Small and Fast Video Processing Networks via Neural Architecture SearchDecember 2021June 2025Allow4210NoNo
17545819AUTOENCODER-BASED INFORMATION CONTENT PRESERVING DATA ANONYMIZATION SYSTEMDecember 2021March 2024Allow2820YesNo
17456038GROUP OF NEURAL NETWORKS ENSURING INTEGRITYNovember 2021April 2022Allow510YesNo
17613042PARAMETER ESTIMATION DEVICE, PARAMETER ESTIMATION METHOD, AND PARAMETER ESTIMATION PROGRAMNovember 2021October 2025Abandon4710YesNo
17512086APPARATUS AND METHODS FOR GAUSSIAN BOSON SAMPLINGOctober 2021October 2022Allow1220NoNo
17510517Computational Analysis to Predict Molecular Recognition Space of Monoclonal Antibodies Through Random-Sequence Peptide ArraysOctober 2021November 2023Allow2410YesNo
17508344RANDOMIZED QUANTUM ALGORITHM FOR STATISTICAL PHASE ESTIMATIONOctober 2021October 2025Allow4720YesNo
17505202QUANTUM COMPUTING WITH KERNEL METHODS FOR MACHINE LEARNINGOctober 2021January 2025Allow3900YesNo
17503743ADAPTIVE PATH PLANNING METHOD BASED ON NEUTRAL NETWORKS TRAINED BY THE EVOLUTIONAL ALGORITHMSOctober 2021March 2025Allow4110NoNo
17500912SYSTEM AND METHOD FOR PERFORMING FAST COMPUTATIONS USING QUANTUM COUNTING AND PSEUDO-RANDOM SETSOctober 2021June 2023Allow2000YesNo
17450527OPEN SET CLASSIFICATION BASED ON HETEROGENOUS MODEL ENSEMBLE IN MULTISENSOR ENVIRONMENTSOctober 2021September 2025Allow4720YesNo
17486666MACHINE LEARNING FRAMEWORK FOR PERSONALIZED CLOTHING COMPATIBILITYSeptember 2021November 2024Allow3700YesNo
17478805SYSTEM, METHOD, AND COMPUTER PROGRAM FOR AUTOMATICALLY CLASSIFYING USER ACCOUNTS IN A COMPUTER NETWORK USING KEYS FROM AN IDENTITY MANAGEMENT SYSTEMSeptember 2021April 2024Allow3120YesNo
17477080SYSTEMS AND PROCESSES FOR OPERATING AND TRAINING A TEXT-BASED CHATBOTSeptember 2021February 2024Allow2911NoNo
17474037COMPUTATION WITH ADJUSTABLE RESONANT OPTICAL METAMATERIALSSeptember 2021September 2023Allow2410NoNo
17437244PARAMETER TUNING APPARATUS, PARAMETER TUNING METHOD, COMPUTER PROGRAM AND RECORDING MEDIUMSeptember 2021August 2025Abandon4710NoNo
17466755TWO-VANE PUMP AND DESIGN METHOD OF TWO-VANE PUMP FOR WASTEWATER USING MACHINE LEARNINGSeptember 2021January 2024Allow2922NoNo
17464566AUTOMATIC GENERATION OF ATTRIBUTE SETS FOR COUNTERFACTUAL EXPLANATIONSSeptember 2021August 2025Allow4720YesNo
17407621FORECASTING WITH DEEP STATE SPACE MODELSAugust 2021March 2025Allow4310NoNo
17384050APPARATUS AND METHOD FOR NEURAL ARCHITECTURE SEARCHING WITH TARGET DATA ADAPTIONJuly 2021May 2025Allow4620YesNo
17376195METHOD AND APPARATUS FOR IMAGE RECOGNITION USING DUAL-SUBNETWORK ARCHITECTUREJuly 2021July 2025Allow4830YesNo
17350991CUSTOMIZED PREDICTIVE ANALYTICAL MODEL TRAININGJune 2021May 2023Allow2300NoNo
17351101QUANTUM TOMOGRAPHY AND PHOTON SOURCE OPTIMIZATIONJune 2021September 2022Allow1520YesNo
17311840MATERIAL PHASE DETECTION IN ADDITIVE MANUFACTURINGJune 2021January 2024Allow3111NoNo
17332906GENETIC ALGORITHM WITH DETERMINISTIC LOGICMay 2021August 2023Allow2610NoNo
17332464METHOD AND APPARATUS OF INCREASING KNOWLEDGE BASED ON UNCERTAINTY IN NEURAL NETWORKSMay 2021September 2024Allow4010NoNo
17329074MACHINE LEARNING MODELS IN LOCATION BASED EPISODE PREDICTIONMay 2021April 2023Allow2300NoNo
17291753METHOD OF SETTING ARTIFICIAL INTELLIGENCE EXECUTION MODEL AND ARTIFICIAL INTELLIGENCE EXECUTION ACCELERATION SYSTEM FOR ARTIFICIAL INTELLIGENCE EXECUTION ACCELERATIONMay 2021December 2021Allow700YesNo
17306003Generative Model for Inverse Design of Materials, Devices, and StructuresMay 2021December 2024Allow4310YesNo
17234469SYSTEMS AND METHODS FOR ACHIEVING ORTHOGONAL CONTROL OF NON-ORTHOGONAL QUBIT PARAMETERSApril 2021July 2023Allow2710NoNo
17233832TECHNIQUES FOR AUTOMATICALLY AND OBJECTIVELY IDENTIFYING INTENSE RESPONSES AND UPDATING DECISIONS RELATED TO INPUT/OUTPUT DEVICES ACCORDINGLYApril 2021June 2025Abandon4910NoNo
17232690CLOUD WORKLOAD MANAGEMENT USING WORKLOAD PROFILESApril 2021December 2024Allow4420NoNo
17283166INFORMATION PROCESSING APPARATUS FOR CONTROLLING FLIGHT OF AN AERIAL VEHICLE WITH A GENERATED LEARNING MODELApril 2021September 2024Allow4110NoNo
17209508ANOMALY DETECTION USING A NON-MIRRORED DIMENSIONAL-REDUCTION MODELMarch 2021February 2024Allow3470YesNo
17209432ANOMALY DETECTION USING A DIMENSIONAL-REDUCTION MODELMarch 2021April 2022Allow1330YesNo
17204202SYSTEM AND METHOD FOR IMPLEMENTING AN ASSESSMENT TOOL FOR CONVERTING A REGULATION INTO A SERIES OF QUESTIONSMarch 2021July 2023Allow2810NoNo
17197361UNIFORM ARTIFICIAL INTELLIGENCE MODEL CONVERSIONMarch 2021July 2024Allow4010YesNo
17197535INTERPRETABLE MODEL CHANGESMarch 2021February 2025Allow4710YesNo
17187638MACHINE LEARNING THROUGH MULTIPLE LAYERS OF NOVEL MACHINE TRAINED PROCESSING NODESFebruary 2021August 2023Allow3010NoNo
17183951METHOD AND DEVICE FOR SUPPORTING MANEUVER PLANNING FOR AN AUTOMATED DRIVING VEHICLE OR A ROBOTFebruary 2021October 2024Allow4310YesNo
17178942COMPUTATION WITH OPTICAL METAMATERIALSFebruary 2021July 2021Allow510YesNo
17141237OPTIMIZATION APPARATUS AND OPTIMIZATION METHODJanuary 2021October 2024Allow4630YesNo
17136847METHOD FOR PERFORMING ADJUSTABLE CONTINUAL LEARNING ON DEEP NEURAL NETWORK MODEL BY USING SELECTIVE DEEP GENERATIVE REPLAY MODULE AND DEVICE USING THE SAMEDecember 2020May 2021Allow410NoNo
17124389Evolutionary Imitation LearningDecember 2020March 2024Allow3900YesNo
17119725MODELING OF INFORMATION TECHNOLOGY FAILURES OF ENTERPRISE COMPUTING SYSTEMSDecember 2020August 2024Allow4420YesNo
16973138INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHODDecember 2020November 2024Allow4730NoNo
17113467Hybrid Decision Making AutomationDecember 2020October 2024Allow4720NoNo
17109550LEARNING UNPAIRED MULTIMODAL FEATURE MATCHING FOR SEMI-SUPERVISED LEARNINGDecember 2020October 2024Allow4720YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CHANG, LI WU.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
5
Examiner Affirmed
4
(80.0%)
Examiner Reversed
1
(20.0%)
Reversal Percentile
31.6%
Lower than average

What This Means

With a 20.0% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is below the USPTO average, indicating that appeals face more challenges here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
19
Allowed After Appeal Filing
9
(47.4%)
Not Allowed After Appeal Filing
10
(52.6%)
Filing Benefit Percentile
76.1%
Higher than average

Understanding Appeal Filing Strategy

Filing a Notice of Appeal can sometimes lead to allowance even before the appeal is fully briefed or decided by the PTAB. This occurs when the examiner or their supervisor reconsiders the rejection during the mandatory appeal conference (MPEP § 1207.01) after the appeal is filed.

In this dataset, 47.4% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the top 25% across the USPTO, indicating that filing appeals is particularly effective here. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Strategic Recommendations

Appeals to PTAB face challenges. Ensure your case has strong merit before committing to full Board review.

Filing a Notice of Appeal is strategically valuable. The act of filing often prompts favorable reconsideration during the mandatory appeal conference.

Examiner CHANG, LI WU - Prosecution Strategy Guide

Executive Summary

Examiner CHANG, LI WU works in Art Unit 2124 and has examined 388 patent applications in our dataset. With an allowance rate of 88.7%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 41 months.

Allowance Patterns

Examiner CHANG, LI WU's allowance rate of 88.7% places them in the 70% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by CHANG, LI WU receive 2.14 office actions before reaching final disposition. This places the examiner in the 58% percentile for office actions issued. This examiner issues a slightly above-average number of office actions.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CHANG, LI WU is 41 months. This places the examiner in the 21% percentile for prosecution speed. Applications take longer to reach final disposition with this examiner compared to most others.

Interview Effectiveness

Conducting an examiner interview provides a +5.4% benefit to allowance rate for applications examined by CHANG, LI WU. This interview benefit is in the 31% 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, 33.3% of applications are subsequently allowed. This success rate is in the 71% percentile among all examiners. Strategic Insight: RCEs show above-average effectiveness with this examiner. Consider whether your amendments or new arguments are strong enough to warrant an RCE versus filing a continuation.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 25.9% of cases where such amendments are filed. This entry rate is in the 36% percentile among all examiners. Strategic Recommendation: This examiner shows below-average receptiveness to after-final amendments. You may need to file an RCE or appeal rather than relying on after-final amendment entry.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 133.3% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 85% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences are highly effective with this examiner compared to others. Before filing a full appeal brief, strongly consider requesting a PAC. The PAC provides an opportunity for the examiner and supervisory personnel to reconsider the rejection before the case proceeds to the PTAB.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 70.6% of appeals filed. This is in the 57% percentile among all examiners. Of these withdrawals, 33.3% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows above-average willingness to reconsider rejections during appeals. The mandatory appeal conference (MPEP § 1207.01) provides an opportunity for reconsideration.

Petition Practice

When applicants file petitions regarding this examiner's actions, 40.5% are granted (fully or in part). This grant rate is in the 31% 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 3.1% of allowed cases (in the 80% percentile). Per MPEP § 1302.04, examiner's amendments are used to place applications in condition for allowance when only minor changes are needed. This examiner frequently uses this tool compared to other examiners, indicating a cooperative approach to getting applications allowed. Strategic Insight: If you are close to allowance but minor claim amendments are needed, this examiner may be willing to make an examiner's amendment rather than requiring another round of prosecution.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 0.0% of allowed cases (in the 10% percentile). This examiner rarely issues Quayle actions compared to other examiners. Allowances typically come directly without a separate action for formal matters.

Prosecution Strategy Recommendations

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

  • Request pre-appeal conferences: PACs are highly effective with this examiner. Before filing a full appeal brief, request a PAC to potentially resolve issues without full PTAB review.
  • Plan for extended prosecution: Applications take longer than average with this examiner. Factor this into your continuation strategy and client communications.
  • Examiner cooperation: This examiner frequently makes examiner's amendments to place applications in condition for allowance. If you are close to allowance, the examiner may help finalize the claims.

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.