USPTO Examiner CHANG YU WEN - Art Unit 2413

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18741514TERMINAL AND COMMUNICATION METHODJune 2024July 2025Allow1310NoNo
18734911APERIODIC CHANNEL STATE INFORMATION PHYSICAL UPLINK SHARED CHANNEL REPETITION WITH DEMODULATION REFERENCE SIGNAL BUNDLINGJune 2024October 2025Allow1620NoNo
18649272Resource Configuration Method, First Communications Device, Second Communications Device, and SystemApril 2024May 2025Allow1310NoNo
18622552MEASUREMENT BEHAVIOR IN A PROCESSING WINDOWMarch 2024April 2025Allow1310NoNo
18605015Node and Method for Prescheduling ULink Resources in a Wireless Network According to a UE's Application RequirementsMarch 2024March 2025Allow1210NoNo
18594780SUPPLEMENTARY UPLINK TRANSMISSIONS IN WIRELESS SYSTEMSMarch 2024March 2025Allow1310NoNo
18444561METHOD AND APPARATUS FOR PERFORMING HANDOVER IN A NEXT-GENERATION COMMUNICATION SYSTEMFebruary 2024June 2025Allow1610NoNo
18441066ADAPTIVE SPECTRUM AS A SERVICEFebruary 2024February 2025Allow1210NoNo
18437190METHOD AND APPARATUS FOR CELL INITIAL ACCESS AND PAGING IN WIRELESS CELLULAR COMMUNICATION SYSTEMFebruary 2024March 2025Allow1310NoNo
18542325SIDELINK COMMUNICATION RELIABILITYDecember 2023December 2024Allow1210NoNo
18507927CLOUD CONTROLLED MESH NETWORKINGNovember 2023June 2025Allow1920NoNo
18504183REFERENCE SIGNAL TRANSMISSION METHOD AND TRANSMISSION APPARATUSNovember 2023October 2024Allow1210NoNo
18289390COMMUNICATIONS DEVICE, INFRASTRUCTURE EQUIPMENT AND METHODSNovember 2023February 2026Allow2810NoNo
18473550OPERATING METHOD OF COMMUNICATION DEVICE AND SIGNAL PROCESSOR INCLUDED IN THE COMMUNICATION DEVICESeptember 2023October 2024Allow1310YesNo
18472545CONTROL RESOURCE SET INFORMATION IN PHYSICAL BROADCAST CHANNELSeptember 2023August 2024Allow1110NoNo
18469663FREQUENCY DIVERSITY FOR HELPER TONE-BASED TRANSMISSIONSeptember 2023March 2026Allow3010YesNo
18242782METHOD, APPARATUS FOR DETERMINING BEHAVIOR OF TERMINAL DEVICE, TERMINAL DEVICE AND NETWORK DEVICESeptember 2023April 2025Allow1940YesNo
18459698COMMUNICATION CONTROL METHOD AND DEVICE, MOBILE PLATFORM, AND STORAGE MEDIUMSeptember 2023February 2026Allow3010NoNo
18448033DATA PARSING TO SUPPORT RESOURCE UNIT AGGREGATIONAugust 2023September 2024Allow1310NoNo
18364845ELECTRONIC DEVICE TRANSMITTING AND RECEIVING DATA WITH METAVERSE SERVER AND METHOD FOR OPERATING THEREOFAugust 2023January 2026Allow2910NoNo
18227381INTERFACING EVENT DETECTORS WITH A NETWORK INTERFACEJuly 2023July 2024Allow1210NoNo
18355783TECHNIQUES AND APPARATUSES FOR SYNCHRONIZATION SIGNAL SCANNING BASED AT LEAST IN PART ON A SYNCHRONIZATION RASTERJuly 2023July 2024Allow1210YesNo
18349372NETWORK SYSTEM HAVING A NETWORK APPLIANCEJuly 2023September 2024Allow1510NoNo
18347200METHOD FOR SRS TRANSMISSION RESOURCE CONFIGURATION, TERMINAL DEVICE, AND NETWORK DEVICEJuly 2023December 2025Allow2910NoNo
18335314V2X-ASSISTED BEAM MANAGEMENT FOR MMWAVE WWAN AND SIDELINKJune 2023February 2026Allow3210NoNo
18205496METHOD AND TERMINAL FOR CONTROLLING BANDWIDTH PART INACTIVITY TIMERJune 2023February 2026Allow3210NoNo
18327760METHOD AND APPARATUS FOR SECONDARY CELL GROUP FAILURE REPORTINGJune 2023November 2025Allow2930NoNo
18325239METHOD AND APPARATUS FOR REDUCING OVERHEAD OF ETHERNET FRAME IN NEXT GENERATION MOBILE COMMUNICATION SYSTEMMay 2023July 2024Allow1310NoNo
18324395Adaptive Antenna for Channel Selection Management in Communications SystemsMay 2023June 2024Allow1310NoNo
18253232COMMUNICATION DEVICE, COMMUNICATION METHOD, BASE STATION, AND METHOD PERFORMED BY BASE STATIONMay 2023February 2026Allow3310NoNo
18197040CHASSIS CONTROLLERMay 2023June 2024Allow1310YesNo
18316543RESOURCE UNIT (RU) DOWNSIZINGMay 2023May 2024Allow1210NoNo
18195682NEIGHBOR RELATIONS FOR DISPROPORTIONAL/DISSIMILAR BANDWIDTH/CARRIER ALLOCATIONMay 2023December 2025Allow3110NoNo
18295223FREQUENCY ASSIGNMENT MECHANISMS FOR BACKSCATTER DEVICESApril 2023November 2025Allow3210YesNo
18194993SUBCHANNEL SELECTION AND CHANNEL STATE INFORMATION (CSI) INDICATION VIA BUFFER STATUS REPORT (BSR) FOR SIDELINKApril 2023July 2024Abandon1510NoNo
18191680SYSTEMS AND METHODS FOR VIRTUALIZED DOMAIN PROXY CONTROLMarch 2023September 2025Allow3010YesNo
18190869METHOD AND APPARATUS FOR TRANSMISSIONS OVER MULTIPLE SLOTS IN DUPLEX MODEMarch 2023October 2025Allow3110NoNo
18189199System and Method for Television White Space Network CommunicationMarch 2023February 2026Abandon3510NoNo
18186920NON-COHERENT MODULATION FOR FEDERATED LEARNINGMarch 2023August 2025Allow2910NoNo
18179077TERMINAL AND COMMUNICATION METHODMarch 2023March 2024Allow1210NoNo
18179230CONTENTION WINDOW SIZE DETERMINING METHOD AND APPARATUSMarch 2023April 2024Allow1310NoNo
18024060Dynamic Adaptation of Frequency Resources for Uplink Transmissions with Flexible Frequency Division DuplexingMarch 2023November 2025Allow3310NoNo
18175061CHANNEL SWITCH ANNOUNCEMENTFebruary 2023November 2025Allow3210NoNo
18170667COMMUNICATION METHOD AND RELATED APPARATUSFebruary 2023October 2025Allow3210NoNo
18106784METHOD AND APPARATUS FOR RADIO JAMMING DETECTIONFebruary 2023September 2025Allow3210NoNo
18160486PILOT DESIGN FOR UPLINK (UL) NARROW-BAND INTERNET OF THINGS (NB-IOT)January 2023February 2024Allow1210NoNo
18101985Generation and Transmission of Physical Layer Data Units in a Composite Communication Channel in a Vehicular Communication NetworkJanuary 2023February 2024Allow1310NoNo
18017830MANAGING CELLULAR RADIO ACCESS TECHNOLOGY OPERATIONSJanuary 2023March 2026Abandon3720NoNo
18158794RANDOM ACCESS RESOURCE SELECTION METHOD AND RELATED APPARATUSJanuary 2023August 2025Allow3110YesNo
18100457SYSTEMS AND METHODS FOR RECOVERING COLLIDED PACKETS IN A WIRELESS NETWORK AND BLOCK-BASED ERROR CORRECTIONJanuary 2023October 2025Allow3310NoNo
18013993FREQUENCY DIVISION MULTIPLEXING METHOD, FREQUENCY DIVISION MULTIPLEXING DEVICE, AND STORAGE MEDIUMDecember 2022September 2025Allow3310YesNo
18007967METHOD AND DEVICE FOR REPETITIVELY TRANSMITTING UPLINK CHANNEL IN WIRELESS COMMUNICATION SYSTEMDecember 2022June 2025Allow3010NoNo
17926880WIRELESS COMMUNICATION SYSTEM, RELAY DEVICE, AND CHANNEL SETTING METHODNovember 2022September 2025Allow3410NoNo
18055790RADIO ACCESS NETWORK ENHANCEMENTS FOR MULTIPLE DESCRIPTION CODINGNovember 2022January 2026Allow3811NoNo
17987657MESSAGE PROCESSING METHOD AND DEVICENovember 2022September 2025Allow3420NoNo
17996876TERMINALOctober 2022May 2025Abandon3110NoNo
17920727METHOD AND APPARATUS FOR CONFIGURING CHANNEL RESOURCEOctober 2022August 2025Allow3410NoNo
17969660METHOD AND APPARATUS OF REQUESTING SEMI-PERSISTENT SCHEDULING RESOURCE FOR TRANSMISSION OF DATA DUPLICATION IN A WIRELESS COMMUNICATION SYSTEMOctober 2022October 2023Allow1210NoNo
17916882A METHOD AND APPARATUS FOR HARQ-ACK SUB-CODEBOOK COMBINATIONOctober 2022April 2025Allow3010YesNo
17937886METHODS FOR COMMUNICATION DEVICES FOR OR ADJUSTING A PROCESSING GAIN, APPARATUS, VEHICLE AND COMPUTER PROGRAMOctober 2022January 2026Allow4020NoNo
17956932APPARATUS, SYSTEM, AND METHOD OF TIME-SENSITIVE COMMUNICATION VIA A MULTI USER (MU) MULTIPLE-INPUT-MULTIPLE-OUTPUT (MIMO) (MU-MIMO) TRANSMISSIONSeptember 2022March 2026Allow4110YesNo
17950266CONTROL RESOURCE SET INFORMATION IN PHYSICAL BROADCAST CHANNELSeptember 2022July 2024Allow2220NoNo
17950683SYSTEMS AND METHODS FOR UPLINK TRANSMISSION SWITCHINGSeptember 2022June 2025Allow3210NoNo
17906156MULTIPLEXING PATTERN DETERMINATION BASED ON SUBCARRIER SPACING VALUESSeptember 2022October 2025Allow3721YesNo
17898344FLOW TRACING FOR HETEROGENEOUS NETWORKSAugust 2022April 2025Allow3210YesNo
17802179APPARATUS AND METHOD IN A RADIO COMMUNICATIONS NETWORKAugust 2022August 2025Allow3620NoNo
17887112WIRELESS SIGNAL INFORMATION TRANSMISSIONAugust 2022February 2026Allow4220YesNo
17817557NETWORK ASSISTANT INFORMATION FOR USER EQUIPMENT TROUBLESHOOTINGAugust 2022March 2025Allow3210NoNo
17759961PACKET COLLISION MITIGATION IN SIDELINKAugust 2022March 2025Allow3211NoNo
17759951TECHNIQUES FOR UE-TO-UE CHANNEL OCCUPANCY TIME SHARING IN UNLICENSED SPECTRUMAugust 2022March 2025Allow3210YesNo
17794597PERIODIC CHANNEL STATE INFORMATION (CSI) MEASUREMENT GAP FOR BANDWIDTH LIMITED LOW COMPLEXITY USER EQUIPMENTSJuly 2022October 2025Allow3920YesNo
17793568ACTIVATION OR DEACTIVATION OF MULTIPLE DOWNLINK (DL) OR UPLINK (UL) POSITIONING REFERENCE SIGNALS (PRS) WITH A SINGLE MAC-CE COMMANDJuly 2022November 2025Allow4030NoNo
17863467SYSTEMS AND METHODS FOR A 5G BASED NGSO AIR INTERFACEJuly 2022January 2025Allow3010NoNo
17862070TOOL PORT THROTTLING AT A NETWORK VISIBILITY NODEJuly 2022January 2024Allow1820NoNo
17809247PDCCH ORDERED RANDOM ACCESS CHANNEL PROCEDURE FOR REDUCED CAPABILITY USER EQUIPMENTJune 2022April 2025Allow3320NoNo
17789410DISCONTINUOUS RECEPTION STATE CONFIGURATION METHOD, USER EQUIPMENT AND NETWORK SIDE DEVICEJune 2022January 2025Allow3110YesNo
17844554DEMODULATION REFERENCE SIGNAL CONFIGURATION FOR UPLINK MESSAGESJune 2022May 2025Allow3520YesNo
17757129SIGNALING FOR CHANNEL OCCUPANCY TIME SHARING IN FRAME BASED EQUIPMENT MODEJune 2022March 2025Allow3420YesNo
17805421SYSTEM AND METHOD OF D2D DISCOVERY MESSAGE TRANSMISSIONJune 2022April 2023Allow1110YesNo
17829017COMMUNICATION DEVICE, CONTROL METHOD, AND STORAGE MEDIUMMay 2022February 2026Allow4430YesNo
1782808560 GHZ PHYSICAL LAYER CONVERGENCE PROTOCOL (PLCP) PROTOCOL DATA UNIT (PPDU) FORMATSMay 2022May 2025Allow3620NoNo
17804733TWO-STEP RANDOM ACCESS CHANNEL SIGNALINGMay 2022May 2025Allow3570YesNo
17756310METHOD BY WHICH VEHICLE, TERMINAL, AND NETWORK TRANSMIT SIGNAL IN WIRELESS COMMUNICATION SYSTEM, AND VEHICLE, TERMINAL, AND NETWORK THEREFORMay 2022January 2025Allow3210YesNo
17743668Communication Method, Network Device, and Terminal DeviceMay 2022October 2023Allow1710NoNo
17755173METHOD AND APPARATUS FOR TRANSMITTING INFORMATION ABOUT CHANNEL STATE IN NR V2XApril 2022November 2025Allow4320NoNo
17725408CLOCK-SYNCHRONIZED EDGE-BASED DATA FLOW PRIORITY ASSIGNMENTApril 2022August 2024Allow2800YesNo
17722564MANAGED MU-MIMO ENABLEMENT FOR REAL-WORLD APPLICATIONSApril 2022December 2024Allow3210NoNo
17766765Methods, UE and APU for Handling Data Transmissions in a Distributed MIMO SystemApril 2022February 2025Allow3520NoNo
17707642Beam Handover Method, Apparatus, And Communications DeviceMarch 2022February 2026Allow4640NoNo
17689677ORTHOGONAL FREQUENCY DIVISION MULTIPLE ACCESS (OFDMA) HYBRID TRANSMISSION METHOD AND APPARATUSMarch 2022December 2024Allow3310NoNo
17686761CONTROL CHANNEL DIVERSITY SELECTIONMarch 2022May 2024Allow2611NoNo
17753272LOGICAL CHANNEL PRIORITIZATION BASED ON HARQ FEEDBACKFebruary 2022September 2024Allow3010YesNo
17681328PAGING MECHANISM FOR WIRELESS COMMUNICATION NETWORKSFebruary 2022July 2025Allow4030NoNo
17635597RANDOM ACCESS IN NETWORK SUPPORTING UEs WITH DIFFERENT PRE-COMPENSATION AND/OR GNSS CAPABILITIESFebruary 2022July 2025Allow4130NoNo
17635158METHOD OF PERFORMING HYBRID AUTOMATIC REPEAT REQUEST FEEDBACK FOR SEMI-PERSISTENT SCHEDULING TRANSMISSION AND RELATED DEVICEFebruary 2022June 2024Allow2800NoNo
17670987PROCESSING MESSAGES WITH A DEVICE SERVER OPERATING IN A TELEPHONEFebruary 2022July 2023Allow1720YesNo
17635150Uplink Beamforming Framework for Advanced 5G NetworksFebruary 2022July 2025Abandon4120NoNo
17635169METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING HARQ RESPONSE IN COMMUNICATION SYSTEM SUPPORTING SIDELINK COMMUNICATIONFebruary 2022December 2024Allow3420NoNo
17635145Acknowledgement Feedback for Sidelink CommunicationsFebruary 2022September 2024Abandon3110NoNo
17633938UPLINK RESOURCE CONFIGURATION METHOD, NETWORK DEVICE, AND USER EQUIPMENTFebruary 2022April 2025Abandon3820NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CHANG, YU-WEN.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
5
Examiner Affirmed
3
(60.0%)
Examiner Reversed
2
(40.0%)
Reversal Percentile
61.5%
Higher than average

What This Means

With a 40.0% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
15
Allowed After Appeal Filing
8
(53.3%)
Not Allowed After Appeal Filing
7
(46.7%)
Filing Benefit Percentile
85.3%
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, 53.3% 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 show good success rates. If you have a strong case on the merits, consider fully prosecuting the appeal to a Board decision.

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

Examiner CHANG, YU-WEN - Prosecution Strategy Guide

Executive Summary

Examiner CHANG, YU-WEN works in Art Unit 2413 and has examined 214 patent applications in our dataset. With an allowance rate of 77.1%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 33 months.

Allowance Patterns

Examiner CHANG, YU-WEN's allowance rate of 77.1% places them in the 44% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by CHANG, YU-WEN receive 3.16 office actions before reaching final disposition. This places the examiner in the 89% percentile for office actions issued. This examiner issues more office actions than most examiners, which may indicate thorough examination or difficulty in reaching agreement with applicants.

Prosecution Timeline

The median time to disposition (half-life) for applications examined by CHANG, YU-WEN is 33 months. This places the examiner in the 47% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +21.1% benefit to allowance rate for applications examined by CHANG, YU-WEN. This interview benefit is in the 65% percentile among all examiners. Recommendation: Interviews provide an above-average benefit with this examiner and are worth considering.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 23.8% of applications are subsequently allowed. This success rate is in the 34% percentile among all examiners. Strategic Insight: RCEs show below-average effectiveness with this examiner. Carefully evaluate whether an RCE or continuation is the better strategy.

After-Final Amendment Practice

This examiner enters after-final amendments leading to allowance in 16.7% of cases where such amendments are filed. This entry rate is in the 19% percentile among all examiners. Strategic Recommendation: This examiner rarely enters after-final amendments compared to other examiners. You should generally plan to file an RCE or appeal rather than relying on after-final amendment entry. Per MPEP § 714.12, primary examiners have discretion in entering after-final amendments, and this examiner exercises that discretion conservatively.

Pre-Appeal Conference Effectiveness

When applicants request a pre-appeal conference (PAC) with this examiner, 100.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 71% percentile among all examiners. Strategic Recommendation: Pre-appeal conferences show above-average effectiveness with this examiner. If you have strong arguments, a PAC request may result in favorable reconsideration.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 72.2% of appeals filed. This is in the 60% percentile among all examiners. Of these withdrawals, 46.2% 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, 50.0% are granted (fully or in part). This grant rate is in the 47% 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 0.0% of allowed cases (in the 13% percentile). This examiner rarely makes examiner's amendments compared to other examiners. You should expect to make all necessary claim amendments yourself through formal amendment practice.

Quayle Actions: This examiner issues Ex Parte Quayle actions in 2.4% of allowed cases (in the 71% 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:

  • Expect multiple rounds of prosecution: This examiner issues more office actions than average. Address potential issues proactively in your initial response and consider requesting an interview early in prosecution.
  • Plan for RCE after final rejection: This examiner rarely enters after-final amendments. Budget for an RCE in your prosecution strategy if you receive a final rejection.

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.