USPTO Examiner ZHANG LESHUI - Art Unit 2695

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18982152INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESDecember 2024March 2025Allow310YesNo
18982215INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESDecember 2024May 2025Allow510NoNo
18982181INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESDecember 2024May 2025Allow510NoNo
18685762SOUND SIGNAL DOWNMIX METHOD, SOUND SIGNAL CODING METHOD, SOUND SIGNAL DOWNMIX APPARATUS, SOUND SIGNAL CODING APPARATUS, PROGRAMFebruary 2024January 2026Allow2210YesNo
18439072METHOD FOR DECODING AND ENCODING A DOWNMIX MATRIX, METHOD FOR PRESENTING AUDIO CONTENT, ENCODER AND DECODER FOR A DOWNMIX MATRIX, AUDIO ENCODER AND AUDIO DECODERFebruary 2024May 2025Allow1520NoNo
18425864MULTICHANNEL PLAYBACK DEVICES AND ASSOCIATED SYSTEMS AND METHODSJanuary 2024June 2025Allow1720YesNo
18419160METHOD FOR PROCESSING AN AUDIO SIGNAL, SIGNAL PROCESSING UNIT, BINAURAL RENDERER, AUDIO ENCODER AND AUDIO DECODERJanuary 2024December 2024Allow1110NoNo
18410942SYSTEM AND METHODS FOR UPSAMPLING OF DECOMPRESSED SPEECH DATA USING A NEURAL NETWORKJanuary 2024October 2025Allow2260YesNo
18406669MODE CONTROL METHOD, DEVICE FOR BLUETOOTH HEADSET, AND COMPUTER READABLE STORAGE MEDIUMJanuary 2024March 2026Allow2620NoNo
18404790SELECTIVE DISABLEMENT OF NOISE CANCELATION FOR CONVERSATIONSJanuary 2024February 2026Allow2620YesNo
18544935TIME-DOMAIN STEREO ENCODING AND DECODING METHOD AND RELATED PRODUCTDecember 2023September 2025Allow2130NoNo
18568526PARAMETRIC SPATIAL AUDIO RENDERINGDecember 2023March 2026Abandon2710NoNo
18523738DOWNMIXED SIGNAL CALCULATION METHOD AND APPARATUSNovember 2023February 2025Allow1410YesNo
18514424Remote Playback QueueNovember 2023February 2026Allow2710NoNo
18508415INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESNovember 2023November 2024Allow1210NoNo
18504102AUDIO ENCODING METHOD AND APPARATUS, AND AUDIO DECODING METHOD AND APPARATUSNovember 2023January 2026Allow2710NoNo
18384749Haptic Output SystemOctober 2023June 2025Allow2020YesNo
18496299MAGNETIC FIELD SENSOR USING ACOUSTICALLY DRIVEN FERROMAGNETIC RESONANCEOctober 2023September 2025Allow2321YesNo
18554234SEPARATING SPATIAL AUDIO OBJECTSOctober 2023December 2025Allow2610NoNo
18553783METHOD AND DEVICE FOR MULTI-CHANNEL COMFORT NOISE INJECTION IN A DECODED SOUND SIGNALOctober 2023December 2025Allow2610NoNo
18376262Directional Voice Sensing Using Coherent Optical DetectionOctober 2023February 2025Allow1720YesNo
18478818MOTOR VEHICLE AND METHOD FOR SUMMARIZING A CONVERSATION IN A MOTOR VEHICLESeptember 2023October 2025Allow2510NoNo
18476267Method and System for Producing an Augmented Ambisonic FormatSeptember 2023January 2026Allow2810YesNo
18552132COMBINING SPATIAL AUDIO STREAMSSeptember 2023February 2026Allow2910NoNo
18369530Headset With Programmable Microphone ModesSeptember 2023August 2024Allow1110NoNo
18464030MULTICHANNEL AUDIO CODINGSeptember 2023January 2025Allow1610NoNo
18547050METHODS, APPARATUS AND SYSTEMS FOR LEVEL ALIGNMENT FOR JOINT OBJECT CODINGAugust 2023February 2026Allow3011YesNo
18449281Stereo Signal Processing Method and ApparatusAugust 2023October 2024Allow1410NoNo
18449584Low-Latency Audio NetworkingAugust 2023September 2025Allow2520YesNo
18233369USING STRUCTURED AUDIO OUTPUT TO DETECT PLAYBACK AND/OR TO ADAPT TO MISALIGNED PLAYBACK IN WIRELESS SPEAKERSAugust 2023August 2024Allow1210YesNo
18262169ACOUSTIC PATTERN DETERMINATIONJuly 2023January 2026Allow3020NoNo
18350969ENCODING AND DECODING METHODS, AND ENCODING AND DECODING APPARATUSES FOR STEREO SIGNALJuly 2023March 2025Allow2020YesNo
18349704METHOD, APPARATUS OR SYSTEMS FOR PROCESSING AUDIO OBJECTSJuly 2023September 2024Allow1510NoNo
18349427METHODS AND DEVICES FOR ENCODING AND/OR DECODING IMMERSIVE AUDIO SIGNALSJuly 2023January 2025Allow1920YesNo
18348663Algorithm Enhancements for Haptic-Based Phased-Array SolutionsJuly 2023December 2024Abandon1710NoNo
18348053PULSE-CODE MODULATED AUDIO ROUTERJuly 2023November 2025Allow2810NoNo
18339062TIME-DOMAIN STEREO PARAMETER ENCODING METHOD AND RELATED PRODUCTJune 2023August 2024Allow1410NoNo
18337216POST-PARSE SEMANTIC ANALYZERJune 2023December 2024Allow1820NoNo
18257615QUANTIZING SPATIAL AUDIO PARAMETERSJune 2023August 2025Allow2610YesNo
18331380SIGNAL CHARACTERISTIC DETERMINATOR, METHOD FOR DETERMINING A SIGNAL CHARACTERISTIC, AUDIO ENCODER AND COMPUTER PROGRAMJune 2023February 2026Allow3320NoNo
18328219DEVICE-SPECIFIC SKILL PROCESSINGJune 2023September 2024Allow1520YesNo
18313013Robust Short-Time Fourier Transform Acoustic Echo Cancellation During Audio PlaybackMay 2023September 2024Allow1620YesNo
18003313Wideband Beamforming with Main Lobe Steering and Interference Cancellation at Multiple Independent Frequencies and Spatial LocationsApril 2023November 2024Allow2321NoNo
18124589AUTOMATED GENERATION OF IMPROVED LIST-TYPE ANSWERS IN QUESTION ANSWERING SYSTEMSMarch 2023January 2026Allow3411YesNo
18043905PROCESSING PARAMETRICALLY CODED AUDIOMarch 2023April 2025Allow2600NoNo
18113397INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESFebruary 2023July 2023Allow510YesNo
18113418INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESFebruary 2023June 2023Allow410YesNo
18113406INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESFebruary 2023July 2023Allow510YesNo
18113391INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESFebruary 2023July 2023Allow510YesNo
18106251BONE CONDUCTION HEADPHONE SPEECH ENHANCEMENT SYSTEMS AND METHODSFebruary 2023December 2023Allow1110YesNo
18104083SYSTEMS AND METHODS FOR ITEM-SPECIFIC KEYWORD RECOMMENDATIONJanuary 2023December 2025Allow3420YesNo
18159932Apparatus, Method or Computer Program for estimating an inter-channel time differenceJanuary 2023September 2024Allow1910YesNo
18100424DETECTING AND SUPPRESSING COMMANDS IN MEDIA THAT MAY TRIGGER ANOTHER AUTOMATED ASSISTANTJanuary 2023December 2023Allow1110YesNo
18148360CONCEPT FOR COMBINED DYNAMIC RANGE COMPRESSION AND GUIDED CLIPPING PREVENTION FOR AUDIO DEVICESDecember 2022March 2024Allow1510NoNo
18090972SYSTEMS AND METHODS FOR HEARING ASSESSMENT AND AUDIO ADJUSTMENTDecember 2022August 2023Allow800NoNo
18062976DUMMY PROTOTYPICAL NETWORKS FOR FEW-SHOT OPEN-SET KEYWORD SPOTTINGDecember 2022July 2025Allow3110NoNo
18000862METHODS AND DEVICES FOR ENCODING AND/OR DECODING SPATIAL BACKGROUND NOISE WITHIN A MULTI-CHANNEL INPUT SIGNALDecember 2022September 2025Allow3311YesNo
18072558Disambiguation of Requests for Digital Assistant Task ExecutionNovember 2022May 2025Allow3010YesNo
18071865ACOUSTIC NEURAL NETWORK SCENE DETECTIONNovember 2022March 2024Allow1620YesNo
17992473METHOD AND SYSTEM FOR PERFORMING DATA AUGMENTATION BASED ON MODIFIED SURROGATES, AND, NON-TRANSITORY COMPUTER READABLE MEDIUMNovember 2022January 2026Allow3720NoNo
17998992THE REDUCTION OF SPATIAL AUDIO PARAMETERSNovember 2022October 2025Allow3520NoNo
17987545INTEGRATION OF HIGH FREQUENCY AUDIO RECONSTRUCTION TECHNIQUESNovember 2022July 2023Allow810YesNo
17986877SYSTEMS AND METHODS FOR MODIFYING ROOM CHARACTERISTICS FOR SPATIAL AUDIO RENDERING OVER HEADPHONESNovember 2022January 2025Allow2640YesNo
17982965TRAINING METHOD, TEXT TRANSLATION METHOD, ELECTRONIC DEVICE, AND STORAGE MEDIUMNovember 2022April 2025Allow3011YesNo
18051759AUDIO SYSTEMNovember 2022November 2023Allow1210NoNo
18046969AUTOMATED VALIDATION OF INFORMATION EXCHANGED DURING INTERACTIONSOctober 2022October 2025Allow3620YesNo
17938822Microphone Natural Speech Capture Voice Dictation System and MethodOctober 2022May 2024Allow1920YesNo
17952465CONTEXTUAL UTTERANCE RESOLUTION IN MULTIMODAL SYSTEMSSeptember 2022September 2025Allow3640YesYes
17949682SPEAKER IDENTIFICATION METHOD, SPEAKER IDENTIFICATION DEVICE, NON-TRANSITORY COMPUTER READABLE RECORDING MEDIUM STORING SPEAKER IDENTIFICATION PROGRAM, SEX IDENTIFICATION MODEL GENERATION METHOD, AND SPEAKER IDENTIFICATION MODEL GENERATION METHODSeptember 2022April 2025Allow3111YesNo
17934184Predicting Word Boundaries for On-Device Batching of End-To-End Speech Recognition ModelsSeptember 2022February 2025Allow2920YesNo
17948348METHOD AND APPARATUS FOR TRAINING TEXT CLASSIFICATION MODELSeptember 2022January 2025Allow2710YesNo
17933385DATABASE SYSTEMS WITH AUTOMATED STRUCTURAL METADATA ASSIGNMENTSeptember 2022December 2024Allow2710YesNo
17933152METHOD AND APPARATUS FOR PROCESSING SPEECH, ELECTRONIC DEVICE AND STORAGE MEDIUMSeptember 2022October 2025Allow3621YesNo
17902375INFORMATION QUANTITY-BASED REFERENCE SENSOR SELECTION AND ACTIVE NOISE CONTROL USING THE SAMESeptember 2022December 2023Allow1510NoNo
17899536CENTRALLY CONTROLLING COMMUNICATION AT A VENUEAugust 2022October 2024Allow2540NoNo
17884910APPARATUS AND METHOD FOR ENCODING OR DECODING A MULTICHANNEL SIGNAL USING A SIDE GAIN AND A RESIDUAL GAINAugust 2022October 2024Allow2721YesNo
17882357METHOD FOR PROCESSING AN AUDIO SIGNAL, SIGNAL PROCESSING UNIT, BINAURAL RENDERER, AUDIO ENCODER AND AUDIO DECODERAugust 2022October 2023Allow1410NoNo
17817554SYSTEMS AND METHODS FOR LANGUAGE MODELING WITH TEXTUAL CLINCAL DATAAugust 2022March 2025Abandon3210NoNo
17817574SYSTEMS AND METHODS FOR QUESTION-ANSWERING USING A MULTI-MODAL END TO END LEARNING SYSTEMAugust 2022April 2025Abandon3210NoNo
17788155SPATIAL AUDIO PARAMETER ENCODING AND ASSOCIATED DECODINGJune 2022June 2025Allow3611NoNo
17807095METHOD FOR DECODING AND ENCODING A DOWNMIX MATRIX, METHOD FOR PRESENTING AUDIO CONTENT, ENCODER AND DECODER FOR A DOWNMIX MATRIX, AUDIO ENCODER AND AUDIO DECODERJune 2022October 2023Allow1620NoNo
17839236DYNAMIC BEAMFORMING TO IMPROVE SIGNAL-TO-NOISE RATIO OF SIGNALS CAPTURED USING A HEAD-WEARABLE APPARATUSJune 2022October 2024Abandon2840NoNo
17830581GAS MASK AND HELMET WITH A COMMUNICATION SYSTEMJune 2022September 2023Allow1520YesNo
17664973MULTI-SIGNAL DETECTION AND COMBINATION OF AUDIO-BASED DATA TRANSMISSIONSMay 2022February 2025Abandon3230NoNo
17824297APPARATUS AND METHOD FOR DOWNMIXING OR UPMIXING A MULTICHANNEL SIGNAL USING PHASE COMPENSATIONMay 2022February 2024Allow2120NoNo
17664756SYSTEM AND METHOD FOR CONSTRAINING AIR TRAFFIC COMMUNICATION (ATC) TRANSCRIPTION IN REAL-TIMEMay 2022June 2024Allow2500NoNo
17751562SYSTEM AND/OR METHOD FOR MACHINE LEARNING USING DISCRIMINATOR LOSS COMPONENT-BASED LOSS FUNCTIONMay 2022November 2025Abandon4220NoNo
17751516SYSTEM AND/OR METHOD FOR MACHINE LEARNING USING BINARY POLY LOSS FUNCTIONMay 2022October 2025Abandon4020NoNo
17751538SYSTEM AND/OR METHOD FOR MACHINE LEARNING USING STUDENT PREDICTION MODELMay 2022February 2025Allow3310YesNo
17663913TIME-DOMAIN STEREO ENCODING AND DECODING METHOD AND RELATED PRODUCTMay 2022September 2023Allow1620NoNo
17726728VIDEO PROCESSING METHOD, VIDEO PROCESSING APPARATUS, AND COMPUTER-READABLE STORAGE MEDIUMApril 2022November 2025Allow4240NoNo
17723462ACOUSTIC METAMATERIALApril 2022August 2023Allow1610NoNo
17720912SELF-ATTENTION-BASED CONFIDENCE ESTIMATION OF LANGUAGE MODELSApril 2022June 2024Allow2610YesNo
17765002APPARATUS AND METHOD FOR AUDIO ENCODINGMarch 2022June 2025Allow3940YesNo
17686237Remote Playback QueueMarch 2022February 2023Allow1210YesNo
17639286CHANNEL IDENTIFICATION OF MULTI-CHANNEL AUDIO SIGNALSFebruary 2022July 2024Allow2910YesNo
17678158CHARACTER INPUT DEVICE, CHARACTER INPUT METHOD, AND COMPUTER-READABLE STORAGE MEDIUM STORING A CHARACTER INPUT PROGRAMFebruary 2022April 2025Abandon3720NoNo
17651613Automated Code Feedback SystemFebruary 2022May 2024Allow2730NoNo
17634707EVENT MASKINGFebruary 2022May 2025Allow3940YesNo
17669574MULTI-CHANNEL SPEECH COMPRESSION SYSTEM AND METHODFebruary 2022November 2023Allow2110YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner ZHANG, LESHUI.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
1
Examiner Affirmed
1
(100.0%)
Examiner Reversed
0
(0.0%)
Reversal Percentile
10.6%
Lower than average

What This Means

With a 0.0% reversal rate, the PTAB affirms the examiner's rejections in the vast majority of cases. This reversal rate is in the bottom 25% across the USPTO, indicating that appeals face significant challenges here.

Strategic Value of Filing an Appeal

Total Appeal Filings
3
Allowed After Appeal Filing
1
(33.3%)
Not Allowed After Appeal Filing
2
(66.7%)
Filing Benefit Percentile
53.1%
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, 33.3% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is above the USPTO average, suggesting that filing an appeal can be an effective strategy for prompting reconsideration.

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 ZHANG, LESHUI - Prosecution Strategy Guide

Executive Summary

Examiner ZHANG, LESHUI works in Art Unit 2695 and has examined 109 patent applications in our dataset. With an allowance rate of 97.2%, this examiner allows applications at a higher rate than most examiners at the USPTO. Applications typically reach final disposition in approximately 34 months.

Allowance Patterns

Examiner ZHANG, LESHUI's allowance rate of 97.2% places them in the 88% 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 ZHANG, LESHUI receive 2.40 office actions before reaching final disposition. This places the examiner in the 69% 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 ZHANG, LESHUI is 34 months. This places the examiner in the 44% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +13.0% benefit to allowance rate for applications examined by ZHANG, LESHUI. This interview benefit is in the 50% 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, 30.4% of applications are subsequently allowed. This success rate is in the 60% 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 38.3% of cases where such amendments are filed. This entry rate is in the 58% percentile among all examiners. Strategic Recommendation: This examiner shows above-average receptiveness to after-final amendments. If your amendments clearly overcome the rejections and do not raise new issues, consider filing after-final amendments before resorting to an RCE.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 75.0% of appeals filed. This is in the 65% 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, 57.1% are granted (fully or in part). This grant rate is in the 60% percentile among all examiners. Strategic Note: Petitions show above-average success regarding this examiner's actions. Petitionable matters include restriction requirements (MPEP § 1002.02(c)(2)) and various procedural issues.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.9% of allowed cases (in the 66% 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 0.0% of allowed cases (in the 30% percentile). This examiner issues Quayle actions less often than average. Allowances may 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:

    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.