USPTO Art Unit 2139 Prosecution Statistics

Art Unit Information

Art Unit: 2139
Group: 2130
Tech Center: 2100
Total Cases: 5,367
Last Active: August 2024

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
18837493SNOOP FILTER SCALABILITYAugust 2024May 2025Allow1000NoNo
18775754PREEMPTIVELY WARNING HOST OF BACKGROUND FOLDINGJuly 2024June 2025Allow1100NoNo
18760409Data Storage Device and Method for Device-Initiated HibernationJuly 2024June 2025Allow1110YesNo
18741701HARDWARE REVOCATION ENGINE FOR TEMPORAL MEMORY SAFETYJune 2024May 2025Allow1200YesNo
18676887FAST RESYNCHRONIZATION OF A MIRRORED AGGREGATE USING DISK-LEVEL CLONINGMay 2024December 2024Allow700YesNo
18672394NAND PAGE BUFFER BASED SECURITY OPERATIONSMay 2024April 2025Allow1100YesNo
18665120Storage Systems and Methods for Writing Data to a Persistent Storage DeviceMay 2024May 2025Allow1210NoNo
18663319HIGH CAPACITY, HIGH PERFORMANCE MEMORY SYSTEMMay 2024December 2024Allow700NoNo
18664142VALID DATA IDENTIFICATION FOR GARBAGE COLLECTIONMay 2024May 2025Allow1210NoNo
18658049MEMORY SYSTEM AND METHOD OF PERFORMING BACKGROUND OPERATIONMay 2024June 2025Allow1310NoNo
18654282STORAGE DEVICE FOR AUTONOMOUS DRIVING AND OPERATING METHOD THEREOFMay 2024June 2025Allow1420YesNo
18653300WEAR LEVELING REPAIR IN A MEMORY DEVICEMay 2024April 2025Allow1200NoNo
18652604HOST INITIATED GARBAGE COLLECTIONMay 2024March 2025Allow1010NoNo
18643781TECHNIQUES FOR ACCELERATED DATA RECOVERYApril 2024April 2025Allow1210NoNo
18639821SUPERBLOCK-BASED WRITE MANAGEMENT IN NON-VOLATILE MEMORY DEVICESApril 2024March 2025Allow1110YesNo
18638476TECHNIQUES FOR ENHANCED READ PERFORMANCE ON REPURPOSED BLOCKS OF MEMORY CELLSApril 2024March 2025Allow1110YesNo
18638454LOGGING CACHE LINE LIFETIME HINTS WHEN RECORDING BIT-ACCURATE TRACEApril 2024February 2025Allow1010NoNo
18633028DYNAMIC STATUS REGISTERS ARRAYApril 2024April 2025Allow1210NoNo
18627546Maintaining Multiple Redundancy Schemes Across Different Storage TypesApril 2024February 2025Allow1110NoNo
18628357MEMORY SYSTEM AND METHOD OF CONTROLLING NONVOLATILE MEMORYApril 2024May 2025Allow1320NoNo
18699127ADDRESS TRANSLATION CIRCUITRY AND METHODS FOR PERFORMING ADDRESS TRANSLATION AND METADATA TABLE WALK USING SAME PORTION OF ADDRESSApril 2024May 2025Allow1300YesNo
18623881WORKLOAD-BASED SCAN OPTIMIZATIONApril 2024February 2025Allow1110NoNo
18618532SSD MANAGED HOST WRITE ATOMICITY WITH ARBITRARY TRANSFER LENGTHMarch 2024January 2025Allow1010NoNo
18613950DYNAMIC RAIN FOR ZONED STORAGE SYSTEMSMarch 2024March 2025Allow1120NoNo
18611312HARD DRIVE ANTI-THEFT PROTECTIONMarch 2024June 2025Allow1500YesNo
18610028DATA COMPRESSION FOR MAPPING TABLESMarch 2024March 2025Allow1200NoNo
18608880STORAGE SYSTEMMarch 2024April 2025Allow1300NoNo
18602955SYSTEM AND MEMORY FOR ARTIFICIAL NEURAL NETWORK USING ADDRESS MAP FOR BURST MODE UTILIZATIONMarch 2024February 2025Allow1110YesNo
18600150MEMORY BUFFER MANAGEMENT ON HARDWARE DEVICES UTILIZING DISTRIBUTED DECENTRALIZED MEMORY BUFFER MONITORINGMarch 2024September 2024Allow700NoNo
18595610STORAGE MIGRATION METHOD AND STORAGE SYSTEMMarch 2024June 2025Allow1600YesNo
18593678PERFORMANCE MANAGEMENT USING INTELLIGENT PRIORITIZATION OF MEMORY OPERATIONSMarch 2024June 2025Allow1610YesNo
18592952IN-PLACE MEMORY COPY DURING REMOTE DATA TRANSFER IN HETEROGENEOUS COMPUTE ENVIRONMENTMarch 2024January 2025Allow1100NoNo
18592424Methods and Apparatuses for Addressing Memory CachesFebruary 2024September 2024Allow700YesNo
18591718RECALL PENDING CACHE LINE EVICTIONFebruary 2024February 2025Allow1110NoNo
18592444MEMORY DEVICE, FLASH MEMORY CONTROLLER AND ASSOCIATED CONTROL METHODFebruary 2024May 2025Allow1400NoNo
18588808THREADING OF REPLICATION BASED ON DATA TYPEFebruary 2024September 2024Allow700YesNo
18589138DETERMINISTIC RESIZING OF UNMAP COMMANDSFebruary 2024April 2025Allow1300YesNo
18588775DATA PROCESSING METHOD, APPARATUS, AND SYSTEM OF ACCESS FREQUENCY PREDICTION BASED ON FIRST BLOCK AND BLOCK ADJACENT TO THE FIRST BLOCKFebruary 2024March 2025Allow1300YesNo
18686583METHOD AND APPARATUS FOR PROCESSING ABNORMAL POWER FAILURE OF SOLID STATE DISK, AND ELECTRONIC DEVICE AND MEDIUMFebruary 2024August 2024Allow610YesNo
18586342MEMORY SYSTEMFebruary 2024March 2025Allow1200NoNo
18586207ADAPTIVE BLOCK MAPPINGFebruary 2024March 2025Allow1310NoNo
18585008BYTE-ADDRESSABLE DEVICE AND COMPUTING SYSTEM INCLUDING SAMEFebruary 2024December 2024Allow1010NoNo
18583540MANAGED MEMORY SYSTEMS WITH MULTIPLE PRIORITY QUEUESFebruary 2024January 2025Allow1110NoNo
18583569Zone Segment Drive ManagementFebruary 2024April 2025Allow1410YesNo
18583341Packet Cache System and MethodFebruary 2024September 2024Allow710NoNo
18441095Data Storage Device and Method for Managing Memory Maintenance OperationsFebruary 2024April 2025Allow1410YesNo
18437076TECHNIQUES FOR IMPROVING HOST WRITE PERFORMANCE DURING DATA FOLDING BY WRITING TO ANOTHER DIEFebruary 2024March 2025Allow1300NoNo
18434616ADAPTIVE ENHANCED CORRECTIVE READ BASED ON WRITE AND READ TEMPERATUREFebruary 2024October 2024Allow910YesNo
18432617TRANSLATION LOOKASIDE BUFFER SOFTWARE MONITORFebruary 2024May 2025Allow1500YesNo
18432946ACCESS TRACKING IN MEMORYFebruary 2024April 2025Allow1410YesNo
18432096FLASH MEMORY CONTROLLER AND DATA PROGRAMMING METHODFebruary 2024January 2025Allow1100NoNo
18431263PREVENTING DATA LOSS IN A FILESYSTEM BY CREATING DUPLICATES OF DATA IN PARALLEL, SUCH AS CHARGING DATA IN A WIRELESS TELECOMMUNICATIONS NETWORKFebruary 2024November 2024Allow910NoNo
18294668ADDRESS TRANSLATION CIRCUITRY AND METHOD FOR PERFORMING ADDRESS TRANSLATIONS BASED ON PAGE TABLE LEVEL SIZE INFORMATIONFebruary 2024June 2025Allow1600NoNo
18428653DATA REORDERING AT A MEMORY SUBSYSTEMJanuary 2024January 2025Allow1110NoNo
18293858INFORMATION PROCESSING DEVICE AND INFORMATION PROCESSING METHOD WITH LOCK FOR EXCLUSIVE ACCESS TO DATA IN MEMORYJanuary 2024March 2025Allow1400NoNo
18423018DATA RELOCATION OPERATION TECHNIQUESJanuary 2024January 2025Allow1110NoNo
18413341AFFINITY-BASED CACHE OPERATION FOR A PERSISTENT STORAGE DEVICEJanuary 2024November 2024Allow1010NoNo
18408670DATA STORAGE DEVICE WITH CONFIGURABLE POLICY-BASED STORAGE DEVICE BEHAVIORJanuary 2024December 2024Allow1110NoNo
18407816SYSTEM CACHE OPTIMIZATIONS FOR DEEP LEARNING COMPUTE ENGINESJanuary 2024March 2025Allow1410NoNo
18407071USING PHYSICAL ADDRESS PROXIES TO HANDLE SYNONYMS WHEN WRITING STORE DATA TO A VIRTUALLY-INDEXED CACHEJanuary 2024August 2024Allow710NoNo
18405998MAXIMUM ROW ACTIVE TIME ENFORCEMENT FOR MEMORY DEVICESJanuary 2024April 2025Allow1600NoNo
18402864Optimal Memory Slot Size Selection for Random Read Miss IO OperationsJanuary 2024March 2025Allow1400NoNo
18401642Remote Data Integrity Verification on a Remote Data Replication FacilityJanuary 2024November 2024Allow1100YesNo
18401643Metadata Page Prefetch Processing for Incoming IO OperationsJanuary 2024May 2025Allow1620NoNo
18399517METHOD AND APPARATUS FOR DESIGNING CACHE MEMORY STRUCTURE BASED ON ARTIFICIAL INTELLIGENCEDecember 2023June 2025Allow1810NoNo
18396352MEMORY SYSTEM WITH NONVOLATILE SEMICONDUCTOR MEMORYDecember 2023November 2024Allow1110NoNo
18394275CONSISTENT HASHING WITH SEQUENTIAL INDEXINGDecember 2023March 2025Allow1500NoNo
18545561SELECTIVE SINGLE-LEVEL MEMORY CELL OPERATIONDecember 2023June 2025Allow1810YesNo
18543352Smart Cache CleanerDecember 2023June 2025Allow1810YesNo
18541683SMART SWAPPING AND EFFECTIVE ENCODING OF A DOUBLE WORD IN A MEMORY SUB-SYSTEMDecember 2023October 2024Allow1010NoNo
18534363TECHNIQUES FOR CONCURRENT HOST SYSTEM ACCESS AND DATA FOLDINGDecember 2023March 2025Allow1500NoNo
18531155STORAGE DEVICE SUPPORTING MULTI-NAMESPACE AND METHOD OF OPERATING THE SAMEDecember 2023February 2025Allow1500NoNo
18531267READ REPLACEMENT VIA DATA RECONSTRUCTION BASED ON ACCESS PATTERNSDecember 2023February 2025Allow1510NoNo
18527894MEMORY SYSTEM WITH SELECTIVE ACCESS TO FIRST AND SECOND MEMORIESDecember 2023October 2024Allow1110NoNo
18526520MANAGING STORAGE EXTENTS USING WEAR LEVELSDecember 2023May 2025Allow1810YesNo
18524412SYSTEMS AND METHODS FOR CACHE ALLOCATIONNovember 2023June 2025Allow1910YesNo
18523747SINGLE INPUT/OUTPUT WRITES IN A FILE SYSTEM HOSTED ON A CLOUD, VIRTUAL, OR COMMODITY-SERVER PLATFORMNovember 2023August 2024Allow900YesNo
18523512Storage system with parallel writesNovember 2023October 2024Allow1110NoNo
18523412PARTITIONS WITHIN BUFFER MEMORYNovember 2023May 2025Allow1810NoNo
18523249ORDER ENFORCEMENT FOR DELEGABLE MEMORY ACCESSESNovember 2023May 2025Allow1800NoNo
18520351REPLACING KEY-VALUE PAIR SETS WITH NEW KEY-VALUE PAIR SETSNovember 2023November 2024Allow1200NoNo
18519587METHODS FOR RESTRICTING READ ACCESS TO SUPPLY CHIPSNovember 2023December 2024Abandon1310NoNo
18519871ADJUSTMENT TO GRANULARITY OF LOGICAL-TO-PHYSICAL TABLENovember 2023February 2025Allow1500YesNo
18517307STORAGE DEVICE AND DATA ACCESS METHOD THEREOFNovember 2023January 2025Allow1410YesNo
18517342METHOD AND SYSTEM FOR EFFICIENT COMMUNICATION AND COMMAND SYSTEM FOR DEFERRED OPERATIONNovember 2023December 2024Allow1210NoNo
18513894WRITE ORDERING FOR PERSISTENT MEMORYNovember 2023July 2024Allow800NoNo
18513933COPY DATA'S TIER MANAGEMENTNovember 2023February 2025Allow1500YesNo
18511079SYSTEM MEMORY ADDRESS DECODING FOR INTERLEAVING ADDRESSES ACROSS PHYSICAL REGIONS OF A SYSTEM-ON-CHIP (SOC) AND ACROSS SHARED MEMORY RESOURCES IN A PROCESSOR-BASED SYSTEMNovember 2023May 2025Allow1810NoNo
18510232CACHE MEMORY DEVICE AND METHOD FOR IMPLEMENTING CACHE SCHEDULING USING SAMENovember 2023March 2024Allow400NoNo
18508356CACHE SIZE CHANGENovember 2023December 2024Allow1310NoNo
18508141LATENCY REDUCTION USING STREAM CACHENovember 2023August 2024Allow900YesNo
18506505DYNAMIC PARTITION COMMAND QUEUES FOR A MEMORY DEVICENovember 2023January 2025Allow1520YesNo
18388782DYNAMIC SINGLE-LEVEL CELL WRITE THROUGH IN MEMORY DEVICESNovember 2023April 2025Allow1700YesNo
18505302PAGE REQUEST INTERFACE (PRI) HANDLER OPERATIONAL SUPPORT IN RELATION TO CACHING HOST MEMORY ADDRESS TRANSLATION DATA IN A MEMORY SUB-SYSTEMNovember 2023May 2025Allow1811YesNo
18504992PORTIONED ERASE OPERATION FOR A MEMORY SYSTEMNovember 2023May 2025Allow1910NoNo
18503118INTELLIGENT MANAGEMENT OF FERROELECTRIC MEMORY IN A DATA STORAGE DEVICENovember 2023March 2025Allow1710YesNo
18387162Data Storage Device and Method for Multiple Meta Die BalancingNovember 2023April 2025Allow1720YesNo
18386862STORAGE DEVICE HAVING A CONFIGURABLE COMMAND RESPONSE TRIGGERNovember 2023October 2024Allow1110YesNo
18501412STORAGE DEVICE AND OPERATING METHOD THEREOF INCLUDING A PLURALITY OF ZONES AND OPERATING METHOD THEREOFNovember 2023July 2024Allow810NoNo
18386911DATA TEMPERATURE ASSOCIATED WITH TLB FLUSH REQUESTNovember 2023September 2024Allow1110NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2139.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
148
Examiner Affirmed
90
(60.8%)
Examiner Reversed
58
(39.2%)
Reversal Percentile
77.7%
Higher than average

What This Means

With a 39.2% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is in the top 25% across the USPTO, indicating that appeals are more successful here than in most other areas.

Strategic Value of Filing an Appeal

Total Appeal Filings
274
Allowed After Appeal Filing
106
(38.7%)
Not Allowed After Appeal Filing
168
(61.3%)
Filing Benefit Percentile
80.3%
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, 38.7% 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.

Art Unit 2139 - Prosecution Statistics Summary

Executive Summary

Art Unit 2139 is part of Group 2130 in Technology Center 2100. This art unit has examined 5,367 patent applications in our dataset, with an overall allowance rate of 83.8%. Applications typically reach final disposition in approximately 23 months.

Comparative Analysis

Art Unit 2139's allowance rate of 83.8% places it in the 75% percentile among all USPTO art units. This art unit has a significantly higher allowance rate than most art units at the USPTO.

Prosecution Patterns

Applications in Art Unit 2139 receive an average of 1.77 office actions before reaching final disposition (in the 44% percentile). The median prosecution time is 23 months (in the 82% percentile).

Strategic Considerations

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

  • The art unit's allowance rate suggests a more favorable examination environment compared to the USPTO average.
  • With fewer 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.