USPTO Examiner CATTUNGAL DEREENA T - Art Unit 2431

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19169674TECHNIQUES FOR CROSS-SOURCE ALERT PRIORITIZATION AND REMEDIATIONApril 2025October 2025Allow610YesNo
18963614SECURITY AND FRAUD PREVENTION FOR WEB ACCESSIBLE RECORDSNovember 2024September 2025Allow920YesNo
18962126SYSTEMS AND METHODS OF DIGITAL RIGHTS MANAGEMENTNovember 2024June 2025Allow710YesNo
18962112TECHNIQUES FOR CROSS-SOURCE ALERT PRIORITIZATION AND REMEDIATIONNovember 2024November 2025Allow1220YesNo
18859055METHOD, APPARATUS, DEVICE, AND STORAGE MEDIUM FOR DATA PROCESSINGOctober 2024February 2026Allow1500YesNo
18854418STATEMENT PROOF AND VERIFICATIONOctober 2024February 2026Allow1600YesNo
18790993DI INTERCOMMUNICATION FOR CYBERSECURITY PROTECTION AND OS PIRACY PROTECTIONJuly 2024July 2025Allow1220YesNo
18771118ACTIVE DIRECTORY DATA PROTECTION BY LEVERAGING VIRTUAL MACHINE BACKUP WITH CHANGE NOTIFICATION-BASED ACTIVE DIRECTORY BACKUPJuly 2024October 2025Allow1500YesNo
18753837METHOD AND SYSTEM OF IDENTIFYING SECURITY ENCRYPTION ALGORITHMJune 2024October 2025Allow1500NoNo
18605359SYSTEM, METHOD, AND PROGRAM FOR PROVIDING VIRTUAL CODE, VIRTUAL CODE GENERATING DEVICE, AND VIRTUAL CODE VERIFYING DEVICEMarch 2024April 2025Allow1310YesNo
18443896DETECTING RANSOMWARE IN MONITORED DATAFebruary 2024February 2025Allow1210NoNo
18416122Method and System for Cheon Resistant Static Diffie-Hellman SecurityJanuary 2024March 2025Allow1410YesNo
18393227MANAGEMENT OF MULTIPLE DIGITAL IDENTITIES USING A CENTRALIZED DISTRIBUTED LEDGERDecember 2023February 2026Allow2600YesNo
18390187Generating zero-trust policy for application access utilizing knowledge graph based application segmentationDecember 2023November 2025Allow2310NoNo
18531600PUBLIC KEY INFRASTRUCTURE USING QUANTUM COMPUTERS (PKIQC)December 2023June 2025Allow1800YesNo
18509665VALIDATION OF FLEXIBLE IHS HARDWARE CONFIGURATIONSNovember 2023January 2026Allow2710YesNo
18386748METHOD AND A DEVICE FOR USER VERIFICATIONNovember 2023June 2024Allow720NoNo
18472521Secure Verification of Physical Unclonable FunctionSeptember 2023June 2025Allow2010YesNo
18550788ENCRYPTION KEY GENERATING DEVICE, ENCRYPTION KEY GENERATING PROGRAM, AND ENCRYPTION KEY GENERATING/ERASING METHODSeptember 2023April 2025Allow1900NoNo
18367978DI CHIP, COMMUNICATION DEVICE, SYSTEM, AND OPERATING METHODSeptember 2023September 2024Allow1240YesNo
18465245CONTEXT-BASED SECURE CONTROLLER OPERATION AND MALWARE PREVENTIONSeptember 2023April 2025Abandon1910NoNo
18446838Systems and Methods for Classifying PUF Signature Modules of Integrated CircuitsAugust 2023July 2025Allow2320YesNo
18366602Security Device Including Physical Unclonable Function Cells, Operation Method of Security Device, and Operation Method of Physical Unclonable Function Cell DeviceAugust 2023September 2024Allow1310YesNo
18363857ULTRA HIGH ENTROPY MATERIAL-BASED NON-REVERSIBLE SPECTRAL SIGNATURE GENERATION VIA QUANTUM DOTSAugust 2023March 2024Allow700NoNo
18363853ULTRA HIGH ENTROPY MATERIAL-BASED NON-REVERSIBLE SPECTRAL SIGNATURE GENERATION VIA QUANTUM DOTSAugust 2023March 2024Allow800NoNo
18348865SYSTEMS AND METHODS FOR SECURE CLIENT-SERVER AUTHENTICATION WITH KEY RECYCLINGJuly 2023March 2025Allow2100YesNo
18342689METHOD FOR COMPRESSING AND ENCRYPTING HAPTIC EFFECT DATA, SYSTEM, AND RELATED DEVICESJune 2023June 2025Allow2410NoNo
18340988IDENTITY DEFINED SECURE CONNECTJune 2023August 2024Allow1410NoNo
18268931KEY UPDATING METHOD AND APPARATUS, FILE SHARING METHOD AND APPARATUS, DEVICE, AND COMPUTER STORAGE MEDIUMJune 2023October 2023Allow300YesNo
18331473SYSTEMS AND PROCESSES FOR VAULTLESS TOKENIZATION AND ENCRYPTIONJune 2023August 2025Allow2620NoNo
18319871Security Device Including Physical Unclonable Function Cells, Operation Method of Security Device, and Operation Method of Physical Unclonable Function Cell DeviceMay 2023December 2023Allow700YesNo
18197524QUANTUM-RESISTANT DOUBLE SIGNATURE SYSTEMMay 2023April 2025Abandon2310NoNo
18307952REKEYING IN AUTHENTICATION AND KEY MANAGEMENT FOR APPLICATIONS IN COMMUNICATION NETWORKApril 2023January 2026Allow3310YesNo
18303447HIGHLY RELIABLE PHYSICALLY UNCLONABLE FUNCTIONApril 2023July 2023Allow200YesNo
18130271THREAT MITIGATION SYSTEM AND METHODApril 2023August 2025Allow2850NoNo
18183068DETERMINISTIC LOCAL KEY MASKING FOR HIGH-SPEED ENCRYPTION WITH KEY REUSEMarch 2023February 2026Abandon3510NoNo
18114310METHOD AND SYSTEM FOR CHEON RESISTANT STATIC DIFFIE-HELLMAN SECURITYFebruary 2023September 2023Allow710NoNo
18168184SYSTEM, METHOD, AND PROGRAM FOR PROVIDING VIRTUAL CODE, VIRTUAL CODE GENERATING DEVICE, AND VIRTUAL CODE VERIFYING DEVICEFebruary 2023December 2023Allow1010NoNo
18105081Combined Digital Signature Algorithms for Security Against Quantum ComputersFebruary 2023March 2024Allow1410NoNo
18163753SYSTEMS AND METHODS FOR REMOTELY STORING SECURITY CREDENTIALS IN CLOUD COMPUTING SYSTEMS FEATURING PARTITIONED NETWORK STRUCTURESFebruary 2023December 2024Allow2200YesNo
18162856Quantum Attack Resistant Advanced Encryption Standard (AES) EncryptionFebruary 2023October 2024Allow2020NoNo
18157978CONTEXT-BASED SECURE CONTROLLER OPERATION AND MALWARE PREVENTIONJanuary 2023June 2023Allow500YesNo
18098464Generating zero-trust policy for application access based on sequence-based application segmentationJanuary 2023December 2025Allow3420NoNo
18004333INTEGRATED CIRCUIT DEVICE WITH PROTECTION AGAINST MALICIOUS ATTACKSJanuary 2023January 2026Allow3610NoNo
18012043TRACEABLE DECENTRALIZED CONTROL OF NETWORK ACCESS TO PRIVATE INFORMATIONDecember 2022January 2026Allow3710NoNo
18079036UNIFICATION OF DATA FLOWS OVER NETWORK LINKS WITH DIFFERENT INTERNET PROTOCOL (IP) ADDRESSESDecember 2022May 2023Allow600YesNo
18053638MODEL FOR IDENTIFYING THE MOST RELEVANT PERSON(S) FOR AN EVENT ASSOCIATED WITH A RESOURCENovember 2022March 2024Abandon1620YesNo
17942969PAIR-WISE GRAPH QUERYING, MERGING, AND COMPUTING FOR ACCOUNT LINKINGSeptember 2022July 2025Allow3410YesNo
17893743MULTI-PARTY SESSION KEY AGREEMENT METHODAugust 2022May 2024Allow2110NoNo
17883670Systems and Methods for Classifying PUF Signature Modules of Integrated CircuitsAugust 2022October 2023Allow1420YesNo
17878720QUANTUM-RESISTANT DOUBLE SIGNATURE SYSTEMAugust 2022December 2022Allow500YesNo
17816414DISPLAY METHOD, DISPLAY DEVICE, AND ELECTRONIC DEVICEJuly 2022April 2024Allow2040NoNo
17794142DIGITAL FINGERPRINT GENERATOR AND METHOD FOR GENERATING DIGITAL FINGERPRINTJuly 2022June 2023Allow1100YesNo
17868204VOLTAGE ENCODED MAC AND BUS SCRAMBLINGJuly 2022November 2023Allow1620NoNo
17862791METHOD AND SYSTEM FOR CHEON RESISTANT STATIC DIFFIE-HELLMAN SECURITYJuly 2022December 2022Allow500YesNo
17833634METHODS AND SYSTEMS FOR GENERATING A SECURE COMMUNICATION CHANNEL INTERFACE FOR VIDEO STREAMING OF SENSITIVE CONTENTJune 2022December 2023Allow1830YesNo
17747233SYSTEM FOR DYNAMIC DATA AGGREGATION AND PREDICTION FOR ASSESSMENT OF ELECTRONIC NON-FUNGIBLE RESOURCESMay 2022December 2025Allow4320NoNo
17748008DEDUPLICATION OF ENDPOINT IMAGESMay 2022March 2025Allow3400YesNo
17738751SYSTEM, METHOD, AND PROGRAM FOR PROVIDING VIRTUAL CODE, VIRTUAL CODE GENERATING DEVICE, AND VIRTUAL CODE VERIFYING DEVICEMay 2022November 2022Allow600YesNo
17661035Gradual Credential DisablementApril 2022February 2024Allow2120YesYes
17659392UNAUTHORIZED COMMUNICATION DETECTION IN HYBRID CLOUDApril 2022December 2024Allow3200YesNo
17721963SYSTEMS AND METHODS FOR GENERATING SYNTHETIC DATAApril 2022January 2025Allow3300NoNo
17707605TECHNIQUES, DEVICES, AND INSTRUCTION SET ARCHITECTURE FOR BALANCED AND SECURE LADDER COMPUTATIONSMarch 2022January 2024Allow2100NoNo
17705973SYSTEMS AND METHODS FOR NETWORK ACCESS GRANTINGMarch 2022April 2024Allow2530YesNo
17700164METHOD AND APPARATUS FOR FACILITATING THE LOGIN OF AN ACCOUNTMarch 2022July 2024Allow2830YesYes
17695927AUTHENTICATION OF PROCESS EXECUTION IN VIRTUAL ENVIRONMENTSMarch 2022June 2024Allow2700NoNo
17653761ULTRA HIGH ENTROPY MATERIAL-BASED NON-REVERSIBLE SPECTRAL SIGNATURE GENERATION VIA QUANTUM DOTSMarch 2022May 2023Allow1400YesNo
17684542METHOD AND APPARATUS FOR NEURAL NETWORK MODEL ENCRYPTION AND DECRYPTIONMarch 2022November 2024Allow3210YesNo
17571998METHOD AND APPARATUS FOR REPLACING SECURITY KEY IN MACHINE TO MACHINE SYSTEMJanuary 2022June 2024Allow2930YesNo
17622502METHOD, NODE AND COMPUTER PROGRAM OF LAWFUL INTERCEPTION SYSTEMS AND NETWORKSDecember 2021November 2024Allow3520YesNo
17644853SYSTEMS AND METHODS FOR PASSIVE QUANTUM SESSION AUTHENTICATIONDecember 2021April 2024Allow2830YesNo
17554942IDENTITY DEFINED SECURE CONNECTDecember 2021April 2023Allow1610YesNo
17644846SECRET ROTATION IN A CLOUD SERVICEDecember 2021January 2024Allow2500NoNo
17551529CURATING SERVICES THROUGH PROXIES WITH EXTENSIBLE POLICYDecember 2021September 2025Abandon4540YesNo
17549859TECHNIQUES FOR SECURE INTRA-NODE COMMUNICATION BETWEEN EDGE DEVICESDecember 2021June 2025Allow4230YesNo
17547875CRYPTOGRAPHIC COMPUTING WITH CONTEXT INFORMATION FOR TRANSIENT SIDE CHANNEL SECURITYDecember 2021August 2025Allow4420YesNo
17547918Automatically Re-Routing Multi-Cloud Holochain Data Ingestion Based on Network Architecture Availability to Internet of Things (IoT) DevicesDecember 2021June 2025Allow4220NoNo
17543701DIGITAL LOGIC LOCKING OF ANALOG CIRCUITSDecember 2021March 2023Allow1600YesNo
17527836SYSTEMS AND METHODS FOR PROTECTING WEB CONFERENCES FROM INTRUDERSNovember 2021May 2024Allow3010NoNo
17526859ZERO SIGN-ON AUTHENTICATIONNovember 2021May 2025Allow4250YesNo
17499942Generating zero-trust policy for application access using machine learningOctober 2021May 2025Allow4340YesNo
17464832DATA STRUCTURE MEASUREMENT COMPARISONSeptember 2021January 2023Allow1610NoNo
17458647SYSTEMS AND METHODS FOR BIFURCATED BLOCKCHAIN-BASED DIGITAL ENCRYPTIONAugust 2021September 2023Allow2510NoNo
17374593CONTEXT-BASED SECURE CONTROLLER OPERATION AND MALWARE PREVENTIONJuly 2021October 2022Allow1500YesNo
17340683Secure Data Storage with a Dynamically Generated KeyJune 2021November 2024Allow4150YesNo
17335587SYSTEMS AND METHODS FOR DYNAMICALLY APPLYING INFORMATION RIGHTS MANAGEMENT POLICIES TO DOCUMENTSJune 2021April 2025Allow4650YesNo
17335223Combined Digital Signature Algorithms for Security Against Quantum ComputersJune 2021October 2022Allow1600YesNo
17333623MANAGING ENCRYPTION KEYS UNDER GROUP-LEVEL ENCRYPTIONMay 2021March 2023Allow2200YesNo
17297317ELECTRONIC DEVICE AND METHOD FOR AUTHENTICATION OF AN ELECTRONIC DEVICEMay 2021November 2023Abandon2910NoNo
17326344SOFTWARE-BASED HARDWARE SECURITY MODULE (HSM) FOR A VIRTUALIZED COMPUTING ENVIRONMENTMay 2021December 2024Abandon4330NoNo
17242656DETECTING RANSOMWARE IN MONITORED DATAApril 2021January 2024Abandon3310NoNo
17243188DETECTING RANSOMWARE IN SECONDARY COPIES OF CLIENT COMPUTING DEVICESApril 2021January 2024Allow3310YesNo
17234244SYSTEMS AND METHODS FOR DATA REDACTIONApril 2021August 2024Abandon4010NoNo
17229080BLOCKCHAIN PROCESSING OFFLOAD TO NETWORK DEVICEApril 2021December 2024Allow4411YesNo
17301534SYSTEMS AND METHODS FOR DATA SECURITY ON A MOBILE DEVICEApril 2021August 2024Allow4030NoNo
17223157SYSTEMS AND PROCESSES FOR VAULTLESS TOKENIZATION AND ENCRYPTIONApril 2021February 2023Allow2310YesNo
17217998ISOLATING RESOURCES FOR POTENTIALLY FRAUDULENT VIRTUAL COMPUTE INSTANCESMarch 2021May 2025Allow4940YesNo
17216864SYSTEM FOR DYNAMIC CHAFFING FOR LOG OBFUSCATION BASED ON SHIFTING EXPOSURE PORTFOLIOMarch 2021November 2023Allow3100YesNo
17279265MAC TAG LIST GENERATION APPARATUS, MAC TAG LIST VERIFICATION APPARATUS, AGGREGATE MAC VERIFICATION SYSTEM AND METHODMarch 2021April 2023Allow2500NoNo
17203600OBSCURING MEMORY ACCESS PATTERNS THROUGH PAGE REMAPPINGMarch 2021October 2024Allow4340YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for examiner CATTUNGAL, DEREENA T.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
10
Examiner Affirmed
7
(70.0%)
Examiner Reversed
3
(30.0%)
Reversal Percentile
46.6%
Lower than average

What This Means

With a 30.0% 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
20
Allowed After Appeal Filing
7
(35.0%)
Not Allowed After Appeal Filing
13
(65.0%)
Filing Benefit Percentile
57.5%
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, 35.0% 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 CATTUNGAL, DEREENA T - Prosecution Strategy Guide

Executive Summary

Examiner CATTUNGAL, DEREENA T works in Art Unit 2431 and has examined 267 patent applications in our dataset. With an allowance rate of 82.4%, this examiner has an above-average tendency to allow applications. Applications typically reach final disposition in approximately 33 months.

Allowance Patterns

Examiner CATTUNGAL, DEREENA T's allowance rate of 82.4% places them in the 55% percentile among all USPTO examiners. This examiner has an above-average tendency to allow applications.

Office Action Patterns

On average, applications examined by CATTUNGAL, DEREENA T receive 2.16 office actions before reaching final disposition. This places the examiner in the 59% 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 CATTUNGAL, DEREENA T 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 +33.3% benefit to allowance rate for applications examined by CATTUNGAL, DEREENA T. This interview benefit is in the 81% 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, 25.6% of applications are subsequently allowed. This success rate is in the 41% 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 26.0% 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, 142.9% result in withdrawal of the rejection or reopening of prosecution. This success rate is in the 88% 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 54.5% of appeals filed. This is in the 26% percentile among all examiners. Of these withdrawals, 50.0% occur early in the appeal process (after Notice of Appeal but before Appeal Brief). Strategic Insight: This examiner shows below-average willingness to reconsider rejections during appeals. Be prepared to fully prosecute appeals if filed.

Petition Practice

When applicants file petitions regarding this examiner's actions, 42.1% are granted (fully or in part). This grant rate is in the 33% 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 14% 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 17% 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.
  • 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.

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.