USPTO Examiner LIU ZHE - Art Unit 2493

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18610402Detecting and Protecting Against Cybersecurity Attacks Using Unprintable Tracking CharactersMarch 2024February 2026Allow2310NoNo
18593101METHODS AND SYSTEMS FOR DETECTION OF CLOCK TAMPERING ON AN ELECTRONIC DEVICEMarch 2024March 2026Abandon2510NoNo
18512149FUSE BASED REPLAY PROTECTION WITH AGGRESSIVE FUSE USAGE AND COUNTERMEASURES FOR FUSE VOLTAGE CUT ATTACKSNovember 2023December 2025Allow2510YesNo
18465885SECURITY HARDENED PROCESSING DEVICESeptember 2023June 2025Allow2100NoNo
18355825MALICIOUS BEHAVIOR DETECTION AND MITIGATION IN A DOCUMENT EXECUTION ENVIRONMENTJuly 2023December 2025Allow2830YesNo
18334332METHOD OF SPEEDING UP SECURE BOOT PROCESS AND ELECTRONIC DEVICE USING THE SAMEJune 2023March 2026Allow3320YesNo
18183783LATENT-CONTEXT ALERT CORRELATION ENGINE IN A SECURITY MANAGEMENT SYSTEMMarch 2023February 2026Allow3520YesNo
18107430METHOD FOR SIMULTANEOUS EXECUTION OF TRANSACTIONS ON A BLOCKCHAIN VIA A COIN SET MODELFebruary 2023October 2025Allow3210NoNo
18163488METHOD FOR PROTECTION FROM CYBER ATTACKS TO A VEHICLE BASED UPON TIME ANALYSIS, AND CORRESPONDING DEVICEFebruary 2023December 2025Allow3520YesNo
18154667Accelerated Secure Boot for Embedded ControllersJanuary 2023February 2026Abandon3720YesNo
18152186USER IDENTITY RISK SCORE GENERATION IN AN ENTERPRISE NETWORKJanuary 2023June 2025Allow2910YesNo
18068733Enhanced Mobile Privacy With Code WordsDecember 2022September 2025Allow3320YesNo
18068440METHODS, SYSTEMS AND COMPUTER PROGRAMS FOR DETECTING POTENTIALLY SUSPICIOUS RESOURCE ACCESS EVENTSDecember 2022June 2025Allow3010YesNo
18066913PROTECTION OF AUTHENTICATION TAG COMPUTATION AGAINST POWER AND ELECTROMAGNETIC SIDE-CHANNEL ATTACKSDecember 2022May 2025Abandon2920NoNo
17993119RECOMMENDATION ENGINE USING FULLY HOMOMORPHIC ENCRYPTIONNovember 2022September 2025Allow3420YesNo
17991770DATA PACKET PROCESSING METHOD, APPARATUS, AND ELECTRONIC DEVICE, COMPUTER-READABLE STORAGE MEDIUM, AND COMPUTER PROGRAM PRODUCTNovember 2022May 2025Allow4120NoNo
17985824Snapset Restricted Utilization and PreservationNovember 2022June 2025Allow3130YesNo
17921101NETWORKING DEVICE WITH PRIVACY PROTECTIONOctober 2022July 2025Allow3320YesNo
17937882CYBER RECOVERY FORENSICS KIT CONFIGURED TO SEND RETURN MALWAREOctober 2022March 2026Allow4130YesNo
17915467METHOD, DEVICE AND APPARATUS FOR CONTROLLING NETWORK SLICE AUTHENTICATION, AND RELEVANT STORAGE MEDIUMSeptember 2022November 2025Allow3830YesNo
17941800CRYPTOGRAPHIC ARCHITECTURE FOR SECURING ACCESS TO CONTROLLED SUBSTANCESSeptember 2022March 2025Allow3020YesNo
17910338SERVICE PROVIDING SYSTEM, SERVICE PROVIDING METHOD AND PROGRAMSeptember 2022December 2025Allow3920YesNo
17819713SYSTEMS AND METHODS FOR DETECTING A PRIOR COMPROMISE OF A SECURITY STATUS OF A COMPUTER SYSTEMAugust 2022July 2024Allow2320YesNo
17876523FORMING MODULAR CHASSIS TRUSTED GROUPS FOR PRE-BOOT AUTHENTICATION OF BLADE SERVERSJuly 2022March 2025Allow3110NoNo
17809586MALWARE DETECTION IN CONTAINERIZED ENVIRONMENTSJune 2022December 2025Allow4140YesNo
17840507SYSTEM FOR AND METHOD OF AUTHENTICATING A COMPONENT OF AN ELECTRONIC DEVICEJune 2022November 2023Allow1710YesNo
17827186DETECTION OF ANOMALIES IN A COMPUTER SYSTEMMay 2022August 2024Allow2720YesNo
17744971Method of Providing Secure Communications to Multiple Devices and Multiple PartiesMay 2022January 2025Allow3230YesNo
17711768MICRO-ENCLAVES FOR INSTRUCTION-SLICE-GRAINED CONTAINED EXECUTION OUTSIDE SUPERVISORY RUNTIMEApril 2022November 2025Allow4310NoNo
17707519METHODS AND APPARATUS FOR AUTOMATED MULTI-FACTOR AUTHENTICATIONMarch 2022November 2024Abandon3110NoNo
17707673PLATFORM-CAPABILITY-POLICY PROFILESMarch 2022November 2024Abandon3110NoNo
17685039USER INTERFACE FOR ENROLLING A BIOMETRIC FEATUREMarch 2022August 2024Allow3010YesNo
17685331MEMORY SYSTEM AND RANDOM NUMBER GENERATION DEVICEMarch 2022October 2024Allow3110NoNo
17672972LOG TAMPERING PREVENTION FOR HIGH AVAILABILITY ENVIRONMENTSFebruary 2022January 2026Allow4740YesNo
17591441SYSTEMS AND METHODS FOR GENERATING SECURE, ENCRYPTED COMMUNICATIONS ACROSS DISTRIBUTED COMPUTER NETWORKS FOR AUTHORIZING USE OF CRYPTOGRAPHY-BASED DIGITAL REPOSITORIES IN ORDER TO PERFORM BLOCKCHAIN OPERATIONS IN DECENTRALIZED APPLICATIONSFebruary 2022June 2024Allow2910YesNo
17591567DATA SECURITY USING FRAGMENTED CIPHERTEXTFebruary 2022October 2024Allow3210YesNo
17628586SUMMARIZING A GENOMIC DATA ENTRYJanuary 2022August 2024Allow3120YesNo
17576674INFORMATION SYSTEM SECURITYJanuary 2022October 2025Abandon4540YesNo
17626975SECURITY MANAGEMENT DEVICE, SECURITY MANAGEMENT METHOD AND NON-TRANSITORY COMPUTER-READABLE MEDIUMJanuary 2022November 2024Abandon3520NoNo
17562486METHOD FOR PROVING ORIGINAL OF DATA, AND APPARATUS THEREFORDecember 2021June 2024Allow2910YesNo
17532809CRYPTOGRAPHIC METHODS AND SYSTEMS USING BLINDED ACTIVATION CODES FOR DIGITAL CERTIFICATE REVOCATIONNovember 2021February 2026Allow5150YesNo
17609767CERTIFICATION SYSTEM AND DEVICE WITH AUTHENTICATION BETWEEN TERMINALS FOR THE RELEASE OF AN ELECTRONIC PADLOCK IMPLEMENTED BY A COMPUTER PROGRAMNovember 2021June 2024Abandon3110NoNo
17508490SECURITY FOR USB-BASED DEVICE CONFIGURATIONOctober 2021December 2024Allow3820YesNo
17507431METHOD AND SYSTEM FOR A SECURE MANAGEMENT OF STORAGE DEVICES USING A KEY MANAGEMENT SERVICEOctober 2021April 2025Allow4230YesNo
17498431Secure Sharing of Documents Created via Content Management RepositoryOctober 2021January 2025Allow4030YesNo
17480601COMPUTING PERIPHERAL INTERFACE MANAGEMENT MECHANISMSeptember 2021October 2025Abandon4940YesNo
17478353STATE-BASED DETECTION OF ANOMALOUS API CALLS WITHIN A REAL-TIME DATA STREAMSeptember 2021April 2025Allow4340YesNo
17466987Biometric Identification And Verification Among Iot Devices And ApplicationsSeptember 2021August 2023Allow2410YesNo
17443464DETECTING AND ASSESSING EVIDENCE OF MALWARE INTRUSIONJuly 2021January 2026Allow5460YesNo
17385128THREAT AWARE DATA PROTECTIONJuly 2021January 2024Abandon2910NoNo
17362700MALICIOUS DATA ACCESS AS HIGHLIGHTED GRAPH VISUALIZATIONJune 2021February 2025Allow4440NoNo
17353935SECURE ENABLEMENT OF A REMOVABLE SECURITY MODULE ON A LOGIC BOARDJune 2021April 2024Allow3420YesNo
17348476DATA PROTECTION AUTOMATIC OPTIMIZATION SYSTEM AND METHODJune 2021December 2023Allow3030YesNo
17341627METHOD AND APPARATUS TO ADJUST SYSTEM SECURITY POLICIES BASED ON SYSTEM STATEJune 2021March 2024Allow3320YesNo
17340785CHIP SECURITY ANALYSIS METHOD BASED ON PETRI NETJune 2021October 2023Abandon2810NoNo
17324997Detecting and Protecting Against Cybersecurity Attacks Using Unprintable Tracking CharactersMay 2021December 2023Allow3120YesNo
17292707BLOCKCHAIN WITH NON-TURING COMPLETE SYSTEM GUARDSMay 2021November 2024Abandon4310NoNo
17224559FRAMEWORK FOR OBFUSCATION BASED WATERMARKINGApril 2021December 2023Allow3220YesNo
17223493DEFERRED AUTHENTICATION IN A SECURE BOOT SYSTEMApril 2021April 2024Allow3630YesNo
17219459FUSE BASED REPLAY PROTECTION WITH AGGRESSIVE FUSE USAGE AND COUNTERMEASURES FOR FUSE VOLTAGE CUT ATTACKSMarch 2021August 2023Allow2811YesNo
17213111IDENTIFICATION AND MITIGATION OF PERMISSIONS ELEVATING ATTACK VECTORMarch 2021August 2023Allow2920YesNo
17211341SYSTEM AND METHOD OF DETECTING AN UNAPPROVED USE OF A COMPUTING DEVICE OF A USERMarch 2021July 2025Allow5160YesNo
17208982ROBUST MONITORING OF COMPUTER SYSTEMS AND/OR CONTROL SYSTEMSMarch 2021September 2024Abandon4240NoNo
17208624RISK-BASED ALERTING FOR COMPUTER SECURITYMarch 2021July 2023Allow2710YesNo
17196035SYSTEMS AND METHODS FOR LASER PROBING FOR HARDWARE TROJAN DETECTIONMarch 2021June 2024Allow3940NoNo
17168547DETECTION AND MITIGATION OF CYBER ATTACKS ON BINARY IMAGE RECOGNITION SYSTEMSFebruary 2021September 2023Allow3110YesNo
17162761System and Method for Attributing User Behavior from Multiple Technical Telemetry SourcesJanuary 2021April 2024Allow3830YesNo
17152449AUTOMOBILE METHOD FOR SECURING A MOTOR VEHICLE COMPUTERJanuary 2021September 2024Allow4420YesNo
17141542RESTRICTING ACCESS TO APPLICATION FUNCTIONALITY BASED UPON WORKING STATUSJanuary 2021May 2024Allow4040YesNo
17131337ADJUSTING ROLE-BASED ACCESS CONTROL OF A USER BASED ON BEHAVIOR DATA OF THE USERDecember 2020July 2024Allow4350YesNo
17125208METHOD AND SYSTEM FOR CONTINUOUSLY VERIFYING INTEGRITY OF SECURE INSTRUCTIONS DURING RUNTIMEDecember 2020January 2024Allow3730YesNo
17121848HARDWARE MITIGATION FOR SPECTRE AND MELTDOWN-LIKE ATTACKSDecember 2020March 2023Allow2710YesNo
16973898UNAUTHORIZED COMMUNICATION DETECTION DEVICE, UNAUTHORIZED COMMUNICATION DETECTION METHOD AND MANUFACTURING SYSTEMDecember 2020April 2024Allow4040YesNo
17049563Abnormal User IdentificationOctober 2020February 2023Allow2820NoNo
17049030SENSING SYSTEM AND SENSING METHODOctober 2020September 2023Abandon3520YesNo
17024107PROTECTION OF AUTHENTICATION TAG COMPUTATION AGAINST POWER AND ELECTROMAGNETIC SIDE-CHANNEL ATTACKSSeptember 2020June 2023Abandon3320NoNo
17009188ATTACK DETECTION DEVICE, COMPUTER READABLE MEDIUM, AND ATTACK DETECTION METHODSeptember 2020April 2023Abandon3220NoNo
16936630SYSTEMS AND METHODS FOR CONSTRAINING ACCESS TO ONE TIME PROGRAMMABLE STORAGE ELEMENTSJuly 2020August 2023Abandon3720NoNo
16934690SECURITY HARDENED PROCESSING DEVICEJuly 2020June 2023Allow3520YesNo
16913850REAL-TIME DETECTION AND LOCALIZATION OF DoS ATTACKS IN NoC BASED SoC ARCHITECTURESJune 2020May 2023Allow3530YesNo
16956652Method for Restricting Memory Write Access in IoT DevicesJune 2020November 2023Allow4140NoNo
16954507QUANTITATIVE DIGITAL SENSORJune 2020November 2023Allow4110YesNo
16765111TERMINALS AND METHODS FOR SECURE TRANSACTIONSMay 2020July 2024Allow5041YesNo
16874538ON-DIE VOLTAGE-FREQUENCY SECURITY MONITORMay 2020November 2023Allow4240YesNo
16856880METHOD FOR DYNAMICALLY ESTABLISHING A SECURE COMPUTING INFRASTRUCTUREApril 2020October 2023Abandon4240YesNo
16855716MODERATOR SYSTEM FOR A SECURITY ANALYTICS FRAMEWORKApril 2020June 2024Allow5050YesNo
16854802MALICIOUS BEHAVIOR DETECTION AND MITIGATION IN A DOCUMENT EXECUTION ENVIRONMENTApril 2020September 2023Abandon4140YesNo
16846477SYSTEMS AND METHODS FOR DETECTING A PRIOR COMPROMISE OF A SECURITY STATUS OF A COMPUTER SYSTEMApril 2020May 2022Allow2500YesNo
16782171SYSTEM AND METHOD FOR FACILITATING STATEFUL PROCESSING OF A MIDDLEBOX MODULE IMPLEMENTED IN A TRUSTED EXECUTION ENVIRONMENTFebruary 2020July 2022Abandon3010NoNo
16728946PROTECTION CIRCUITDecember 2019May 2024Abandon5320NoYes
16715061SECURE DISTRIBUTION AND MANAGEMENT OF CRYPTOGRAPHIC KEYS WITHIN A COMPUTING ENVIRONMENT USING DISTRIBUTED LEDGERSDecember 2019May 2023Allow4140YesNo
16705568INTEGRATED CIRCUIT, METHOD AND COMPUTER PROGRAMDecember 2019August 2023Allow4430YesNo
16704372Private Exchange of Encrypted Data Over A Computer NetworkDecember 2019May 2022Allow3020YesNo
16684382CONTINUOUSLY HABITUATING ELICITATION STRATEGIES FOR SOCIAL-ENGINEERING-ATTACKS (CHESS)November 2019June 2022Allow3110NoNo
16613164INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND RECORDING MEDIUM REGARDING CPMMUNICATION DATANovember 2019September 2023Abandon4640NoNo
16591190RESTRICTING ACCESS TO TRANSACTIONS BASED ON INFORMATION REQUIREMENTSOctober 2019March 2023Allow4240YesNo
16572439MERGED SURFACE FAST SCAN TECHNIQUE FOR GENERATING A REFERENCE EMI FINGERPRINT TO DETECT UNWANTED COMPONENTS IN ELECTRONIC SYSTEMSSeptember 2019June 2022Abandon3320NoNo
16563107SYSTEM AND METHOD FOR VERIFYING DIGITAL SIGNATURES OF FILESSeptember 2019June 2023Abandon4540YesNo
16554241Cryptographic Operation Processing Methods, Apparatuses, and SystemsAugust 2019June 2022Abandon3320YesNo
16540904SYSTEM AND METHOD FOR TRIGGERING AND DETECTING HARDWARE TROJANSAugust 2019March 2023Allow4340YesNo

Appeals Overview

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

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
1
Examiner Affirmed
1
(100.0%)
Examiner Reversed
0
(0.0%)
Reversal Percentile
7.5%
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
1
Allowed After Appeal Filing
0
(0.0%)
Not Allowed After Appeal Filing
1
(100.0%)
Filing Benefit Percentile
4.1%
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, 0.0% of applications that filed an appeal were subsequently allowed. This appeal filing benefit rate is in the bottom 25% across the USPTO, indicating that filing appeals is less effective here than in most other areas.

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.

Examiner LIU, ZHE - Prosecution Strategy Guide

Executive Summary

Examiner LIU, ZHE works in Art Unit 2493 and has examined 97 patent applications in our dataset. With an allowance rate of 67.0%, this examiner has a below-average tendency to allow applications. Applications typically reach final disposition in approximately 35 months.

Allowance Patterns

Examiner LIU, ZHE's allowance rate of 67.0% places them in the 28% percentile among all USPTO examiners. This examiner has a below-average tendency to allow applications.

Office Action Patterns

On average, applications examined by LIU, ZHE receive 2.52 office actions before reaching final disposition. This places the examiner in the 73% 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 LIU, ZHE is 35 months. This places the examiner in the 39% percentile for prosecution speed. Prosecution timelines are slightly slower than average with this examiner.

Interview Effectiveness

Conducting an examiner interview provides a +65.3% benefit to allowance rate for applications examined by LIU, ZHE. This interview benefit is in the 98% percentile among all examiners. Recommendation: Interviews are highly effective with this examiner and should be strongly considered as a prosecution strategy. Per MPEP § 713.10, interviews are available at any time before the Notice of Allowance is mailed or jurisdiction transfers to the PTAB.

Request for Continued Examination (RCE) Effectiveness

When applicants file an RCE with this examiner, 30.9% of applications are subsequently allowed. This success rate is in the 62% 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 11.5% of cases where such amendments are filed. This entry rate is in the 11% 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, 0.0% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 9% percentile among all examiners. Note: Pre-appeal conferences show limited success with this examiner compared to others. While still worth considering, be prepared to proceed with a full appeal brief if the PAC does not result in favorable action.

Appeal Withdrawal and Reconsideration

This examiner withdraws rejections or reopens prosecution in 0.0% of appeals filed. This is in the 1% percentile among all examiners. Strategic Insight: This examiner rarely withdraws rejections during the appeal process compared to other examiners. If you file an appeal, be prepared to fully prosecute it to a PTAB decision. Per MPEP § 1207, the examiner will prepare an Examiner's Answer maintaining the rejections.

Petition Practice

When applicants file petitions regarding this examiner's actions, 100.0% are granted (fully or in part). This grant rate is in the 91% percentile among all examiners. Strategic Note: Petitions are frequently granted regarding this examiner's actions compared to other examiners. Per MPEP § 1002.02(c), various examiner actions are petitionable to the Technology Center Director, including prematureness of final rejection, refusal to enter amendments, and requirement for information. If you believe an examiner action is improper, consider filing a petition.

Examiner Cooperation and Flexibility

Examiner's Amendments: This examiner makes examiner's amendments in 0.0% of allowed cases (in the 17% 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 0.0% of allowed cases (in the 22% 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:

  • Prioritize examiner interviews: Interviews are highly effective with this examiner. Request an interview after the first office action to clarify issues and potentially expedite allowance.
  • 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.