USPTO Art Unit 2691 Prosecution Statistics

Art Unit Information

Art Unit: 2691
Group: 2690
Tech Center: 2600
Total Cases: 8,210
Last Active: June 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19248541COMPOSITE MATERIAL FOR ACOUSTIC TRANSDUCER DIAPHRAGMJune 2025November 2025Allow500NoNo
19246891LOUDSPEAKER SYSTEM COMPRISING A HEADRESTJune 2025August 2025Allow200NoNo
19209699DUAL-PURPOSE CIRCUIT FOR SOUND EMISSION AND SOUND PICKUP APPLIED TO INDIVIDUAL SPEAKER UNITMay 2025June 2025Allow100NoNo
19209245METHOD FOR ITERATIVE, MULTI-OBJECTIVE OPTIMIZATION OF ACOUSTICAL DESIGN TO IMPROVE AUDIO PERCEPTIONMay 2025September 2025Allow510NoNo
19194953MICROPHONEApril 2025October 2025Allow510NoNo
19195652TABLECONVERSE AUDIO SYSTEM: DIRECTIONAL SPEECH ENHANCEMENT FOR RESTAURANT TABLESApril 2025June 2025Allow110YesNo
19170272METHOD FOR OPERATING A HEARING DEVICE, AND HEARING DEVICE SYSTEMApril 2025June 2025Allow200NoNo
19109920PRIMARY-AMBIENT PLAYBACK ON AUDIO PLAYBACK DEVICESMarch 2025January 2026Allow1020NoNo
19066928AUDIO SPEAKERFebruary 2025April 2025Allow200NoNo
19047151Spatially Explicit Auditory Cues for Enhanced Situational AwarenessFebruary 2025September 2025Allow811YesNo
18998247SPATIAL AUDIO RENDERING ADAPTIVE TO SIGNAL LEVEL AND LOUDSPEAKER PLAYBACK LIMIT THRESHOLDSJanuary 2025June 2025Allow500NoNo
19029119SYSTEMS AND METHODS FOR EQUALIZING AUDIO FOR PLAYBACK ON AN ELECTRONIC DEVICEJanuary 2025April 2025Allow200NoNo
19023381AUDIO CALIBRATION METHOD AND SYSTEM, AND STORAGE MEDIUMJanuary 2025March 2025Allow200NoNo
18990848Compact speaker enclosure with modular external designDecember 2024March 2025Allow200NoNo
18984971LOUDNESS ADJUSTMENT FOR DOWNMIXED AUDIO CONTENTDecember 2024March 2025Allow310NoNo
18977836EXTERNAL SCREEN DEVICE FOR SMARTPHONEDecember 2024September 2025Allow920NoNo
18873781METHOD FOR DETERMINING THE HEAD-RELATED TRANSFER FUNCTIONDecember 2024March 2025Allow300NoNo
18963041CUSTOMIZED INTEGRATED ENTITY ANALYSIS USING AN ARTIFICIAL INTELLIGENCE (AI) MODELNovember 2024May 2025Allow610NoNo
18941947METHODS AND SYSTEMS FOR OPTIMIZING BEHAVIOR OF AUTOMOTIVE AUDIO PLAYBACK SYSTEMSNovember 2024May 2025Allow710NoNo
18935530MAGNETIC EARPHONES HOLDERNovember 2024November 2025Allow1220NoNo
18911860USB GAMING HEADPHONE WITH DUAL-SOUND-CARD OUTPUTOctober 2024June 2025Allow810NoNo
18902105METHOD FOR CONVERTING VEHICLE AUDIO INTO SURROUND SOUND AND VEHICLE SOUND SYSTEMSeptember 2024January 2025Allow300NoNo
18847090LOUDSPEAKERSeptember 2024February 2025Allow500NoNo
18825047MICROPHONESeptember 2024March 2025Allow610NoNo
18815326CONTENTS RECEIVING SYSTEM AND CLIENTAugust 2024February 2025Allow610NoNo
18808205SYSTEM AND METHOD FOR IDENTIFYING THEMES IN INTERACTIVE COMMUNICATIONSAugust 2024March 2026Allow1900YesNo
18799345SYSTEM AND METHOD FOR ARTIFICIAL INTELLIGENCE ASSISTED PROCESSING OF LEGAL RESEARCH QUERIESAugust 2024February 2026Allow1900NoNo
18835594MAGNET ASSEMBLY FOR ELECTRODYNAMIC LOUDSPEAKER MOTOR, ELECTRODYNAMIC LOUDSPEAKER MOTOR COMPRISING SAME, AND ASSOCIATED ELECTRODYNAMIC LOUDSPEAKERAugust 2024March 2026Allow2000NoNo
18792486PATCH-TYPE BONE CONDUCTION EARPHONE FOR AMPLIFYING AUDIO POWERAugust 2024February 2026Allow1900NoNo
18790531TECHNOLOGIES FOR GENERATING OPTIMIZED EVENT SEQUENCE INDICES FOR REAL-TIME EVENT FLOW VISUALIZATIONS AND ANALYTICSJuly 2024February 2026Allow1900YesNo
18788422THREAT IDENTIFICATION AND RESPONSE SYSTEM FOR TELEPHONE CALLSJuly 2024January 2025Allow610YesNo
18785819PARTITION SYSTEM WITH A SPEAKERJuly 2024March 2026Allow1900NoNo
18785171AUDIO PROCESSING METHOD AND TERMINALJuly 2024February 2026Allow1900NoNo
18783466HAND EMULATOR AND ACOUSTIC TESTING SYSTEMJuly 2024February 2026Allow1900NoNo
18783984Ear Microphone Signal Estimator and/or Projection Filter Generator for Road Noise Cancelation (RNC) SystemJuly 2024November 2024Allow300YesNo
18779779FULL-BANDWIDTH DUAL-SIDED SPEAKER DEVICEJuly 2024February 2026Allow1900NoNo
18780013DIRECTIVITY PATTERN CONTROL WAVEGUIDE FOR A SPEAKER, AND SPEAKER INCLUDING A DIRECTIVITY PATTERN CONTROL WAVEGUIDEJuly 2024February 2026Allow1900NoNo
18776199Book with Audio Output and Recording FunctionJuly 2024March 2026Abandon2020NoYes
18774567OPTICAL MICROPHONE SUBSTRATEJuly 2024March 2025Allow800NoNo
18729452VIRTUAL CONTENTJuly 2024February 2026Allow1900NoNo
18772198Method and system for real-time suppression of selected voices in digital stream displayed on smart TVJuly 2024October 2024Allow300NoNo
18772091BONE CONDUCTION EARPHONES AND METHODS FOR MAKING THE SAMEJuly 2024May 2025Allow1010NoNo
18768279ULTRASONIC TRANSDUCER AND PARAMETRIC SPEAKER PROVIDED WITH THE SAMEJuly 2024February 2026Allow1900NoNo
18765635ELECTRONIC DEVICE INCLUDING SPEAKER AND MICROPHONEJuly 2024May 2025Allow1110YesNo
18765606Directional Sound-Producing DeviceJuly 2024October 2025Allow1620YesNo
18727279ACOUSTIC SOUND EVENT DETECTION SYSTEMJuly 2024August 2025Allow1320YesNo
18764106BONE CONDUCTION MICROPHONEJuly 2024January 2025Allow700NoNo
18761089NEAR-FIELD AUDIO RENDERINGJuly 2024April 2025Allow910YesNo
18760430SYSTEM FOR RECOGNIZING SOUNDSCAPESJuly 2024February 2026Allow1900NoNo
18759221METHODS AND SYSTEMS FOR DESIGNING AND APPLYING NUMERICALLY OPTIMIZED BINAURAL ROOM IMPULSE RESPONSESJune 2024January 2025Allow700NoNo
18758461Playing Binaural Sound Clips During an Electronic CommunicationJune 2024May 2025Allow1110NoNo
18758161Binaural Sound in Visual Entertainment MediaJune 2024January 2025Allow700NoNo
18755423MEASUREMENT SYSTEM AND MEASUREMENT METHODJune 2024January 2026Allow1900NoNo
18753088SYSTEM AND METHOD FOR CROSS-FADING AUDIO SIGNALSJune 2024March 2026Allow2000NoNo
18723534BONE CONDUCTION SPEAKER UNITJune 2024January 2026Allow1900NoNo
18750006TECHNIQES FOR SELECTING AN AUDIO PROFILE FOR A USERJune 2024October 2025Allow1620NoNo
18722368COMPACT VIBRATION SENSORJune 2024January 2026Allow1900NoNo
18744688SPEAKER BOXJune 2024January 2026Allow1900NoNo
18744354METHOD AND APPARATUS FOR AUTOMATIC CORRECTION OF REAL EAR MEASUREMENTSJune 2024April 2025Allow1010NoNo
18744115MAGNETIC EARPHONES HOLDERJune 2024December 2025Allow1811NoNo
18743088Waterproof Microphone DeviceJune 2024January 2026Allow1900NoNo
18739403MICROELECTROMECHANICAL DEVICE AND MICROELECTROMECHANICAL LOUDSPEAKERJune 2024March 2026Allow2110NoNo
18739908Microphone Port for Acoustic SuppressionJune 2024February 2026Allow2010YesNo
18737932SPEAKER DEVICEJune 2024January 2026Allow2000NoNo
18737325TECHNIQUE FOR ACCURATELY CHARACTERIZING DROPPED CALLSJune 2024March 2026Allow2100NoNo
18737164SYSTEMS, METHODS, AND STORAGE MEDIA FOR TESTING LOCAL LOOPS OF TELECOMMUNICATIONS NETWORKSJune 2024May 2025Allow1110NoNo
18717388WIRELESS SOUND DEVICE AND CONTROL METHOD THEREOFJune 2024February 2026Allow2000NoNo
18735626SYSTEMS AND METHODS FOR PRESENCE-AWARE REPOSITIONING AND REFRAMING IN VIDEO CONFERENCINGJune 2024September 2025Allow1620NoNo
18735816ELECTRONIC DEVICE AND SPEAKER MODULEJune 2024April 2025Allow1010NoNo
18733608IN-VEHICLE ADAPTIVE SOUND PLAYBACK METHOD, SOUND SYSTEM AND DOMAIN CONTROLLERJune 2024December 2025Allow1900NoNo
18732265CAMERA DEVICEJune 2024October 2025Allow1710NoNo
18680327CALL CLASSIFICATION THROUGH ANALYSIS OF DTMF EVENTSMay 2024January 2026Allow1910NoNo
18676974PORTABLE SPEAKER WITH AUTOMATIC DETECTING INPUT CHANNELMay 2024August 2025Allow1420YesNo
18676812METHOD, APPARATUS AND COMPUTER-READABLE MEDIA TO CREATE AUDIO FOCUS REGIONS DISSOCIATED FROM THE MICROPHONE SYSTEM FOR THE PURPOSE OF OPTIMIZING AUDIO PROCESSING AT PRECISE SPATIAL LOCATIONS IN A 3D SPACEMay 2024August 2025Allow1410NoNo
18676538HEADPHONE WITH EXTERNAL ACCESSORYMay 2024February 2026Allow2000NoNo
18675953OPERATION OF A HEARING DEVICE IN AN AUDIO PRESENTATION SYSTEMMay 2024March 2026Allow2110NoNo
18674868AUDIO APPARATUS IN DRINKWAREMay 2024February 2026Allow2110NoNo
18674843Piezoelectric Transducer And Flat Panel Speaker With Improved Frequency Response And Method Of ManufactureMay 2024October 2024Allow501NoNo
18672707ELECTRO-ACOUSTIC TRANSDUCERMay 2024December 2025Allow1900NoNo
18671862HEARING EVALUATION AND CONFIGURATION OF A HEARING ASSISTANCE-DEVICEMay 2024June 2025Allow1310NoNo
18670654MEASURING SPEECH INTELLIGIBILITY OF AN AUDIO ENVIRONMENTMay 2024February 2025Allow910NoNo
18668392SOUND PROCESSING APPARATUS AND SOUND PROCESSING SYSTEMMay 2024April 2025Allow1010NoNo
18711421VIBRATION EXCITER WITH ELASTIC BRACKETSMay 2024December 2025Allow1900NoNo
18667947Spatial Audio Reproduction Based on Head-to-Torso OrientationMay 2024September 2025Allow1610YesNo
18665895ROBOTIC SYSTEM FOR CONTROLLING AUDIO SYSTEMSMay 2024February 2025Allow900NoNo
18664733NOISE CONTROL SYSTEM, NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM INCLUDING A PROGRAM, AND NOISE CONTROL METHODMay 2024January 2026Allow2000NoNo
18663637AUDIO PROCESSING APPARATUS AND METHOD, AND PROGRAMMay 2024February 2025Allow910NoNo
18662922MAGNETIC EARPHONES HOLDERMay 2024July 2025Allow1411NoNo
18659535METHOD FOR SENSING WEARING OF ELECTRONIC DEVICE, AND ELECTRONIC DEVICEMay 2024March 2026Allow2210YesNo
18660094METHOD AND APPARATUS FOR AUDIO PROCESSING, ELECTRONIC DEVICE AND STORAGE MEDIUMMay 2024December 2025Allow1900YesNo
18658545SELECTABLE MAGNETIC CONTACTLESS SWITCHMay 2024March 2026Allow2210NoNo
18658547TRANSMISSION DEVICE, TRANSMISSION METHOD, RECEPTION DEVICE, AND RECEPTION METHODMay 2024September 2025Allow1720NoNo
18657046Failure Recovery of Wearable Playback DeviceMay 2024October 2025Allow1800NoNo
18654743Speaker with Single Driver Force CancellationMay 2024February 2026Allow2100NoNo
18653621CAPTURING AND PRESENTING AUDIENCE RESPONSE AT SCALEMay 2024February 2025Allow1010NoNo
18651174POWER MANAGEMENT IN LOW POWER WIRELESS LINK IN A HEARING AID SYSTEMApril 2024June 2025Allow1410NoNo
18649567SPEAKER SYSTEMApril 2024November 2025Allow1900NoNo
18648203Method and System for Generating Spatial Procedural AudioApril 2024March 2025Allow1110NoNo
18647488PROVISIONING TOOL -- CALL CENTER-BASED AUTOMATED INTERFACE WITH NETWORK SWITCHES FOR INTERNET SERVICE DIAGNOSTICS AND PROVISIONINGApril 2024September 2025Allow1610NoNo
18645412SOUNDING DEVICEApril 2024November 2025Allow1900NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2691.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
133
Examiner Affirmed
96
(72.2%)
Examiner Reversed
37
(27.8%)
Reversal Percentile
26.2%
Lower than average

What This Means

With a 27.8% 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
287
Allowed After Appeal Filing
79
(27.5%)
Not Allowed After Appeal Filing
208
(72.5%)
Filing Benefit Percentile
25.1%
Lower 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, 27.5% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is below the USPTO average, suggesting that filing an appeal has limited effectiveness in prompting favorable 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 shows limited benefit. Consider other strategies like interviews or amendments before appealing.

Art Unit 2691 - Prosecution Statistics Summary

Executive Summary

Art Unit 2691 is part of Group 2690 in Technology Center 2600. This art unit has examined 8,210 patent applications in our dataset, with an overall allowance rate of 74.3%. Applications typically reach final disposition in approximately 27 months.

Comparative Analysis

Art Unit 2691's allowance rate of 74.3% places it in the 42% percentile among all USPTO art units. This art unit has a below-average allowance rate compared to other art units.

Prosecution Patterns

Applications in Art Unit 2691 receive an average of 1.97 office actions before reaching final disposition (in the 56% percentile). The median prosecution time is 27 months (in the 70% percentile).

Strategic Considerations

When prosecuting applications in this art unit, consider the following:

  • The art unit's allowance rate suggests a more challenging examination environment compared to the USPTO average.
  • With more office actions than average, plan for relatively streamlined prosecution.
  • The median prosecution time is shorter than average and should be factored into your continuation and client communication strategies.
  • Review individual examiner statistics within this art unit to identify examiners with particularly favorable or challenging prosecution patterns.

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.