USPTO Art Unit 2151 Prosecution Statistics

Art Unit Information

Art Unit: 2151
Group: 2150
Tech Center: 2100
Total Cases: 1,661
Last Active: July 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19271709MEMORY CONTEXT FOR LARGE LANGUAGE MODEL CLASSIFICATION OVERRIDEJuly 2025January 2026Allow610NoNo
19269109DIGITAL HARDWARE CIRCUIT FOR EFFICIENT REDUCTION OPERATIONS USING PARALLEL MATRIX COMPARISONJuly 2025November 2025Allow400NoNo
19232245CIRCUIT FOR EFFICIENTLY PERFORMING OPERATIONS ON INPUT DATA TO COMPUTE AN INTERPRETABLE AND DIFFERENTIABLE FUNCTIONJune 2025December 2025Allow710YesNo
19201747HIGH PRECISION ANALOG OPTICAL COMPUTING METHOD AND SYSTEM BASED ON BIT SLICEMay 2025October 2025Allow510YesNo
19174371SYSTEM AND METHOD FOR PREPROCESSING AND CONDITIONING COSMIC RAY DATA FOR RANDOMNESS GENERATIONApril 2025October 2025Allow610NoNo
19097839METHODS FOR DESIGNING HIGH FREEDOM PARAMETERIZED FREQUENCY-MODULATED CODED WAVEFORMApril 2025September 2025Allow510NoNo
19094046INTEGRATING EXTENSIONS AND CUSTOMIZATIONS ON BLOCKCHAIN WALLETSMarch 2025August 2025Allow510YesNo
19090153SYSTEM AND METHOD FOR PREPROCESSING AND CONDITIONING COSMIC RAY DATA FOR RANDOMNESS GENERATIONMarch 2025October 2025Allow710NoNo
19050151MULTI-POWER FLOW INTEGRATED PARALLEL QUANTUM COMPUTING METHOD, SYSTEM, AND STORAGE MEDIUM OF POWER SYSTEMFebruary 2025October 2025Allow810NoNo
19046863AEROELECTROMAGNETIC DATA INVERSION METHOD AND SYSTEM BASED ON APPROXIMATE JACOBIAN MATRIXFebruary 2025February 2026Abandon1220NoNo
19031258CURVATURE-BASED SIGNAL SEGMENTATION METHOD FOR SOLAR-BLIND ULTRAVIOLET PHOTODETECTORSJanuary 2025October 2025Allow910NoNo
19024727ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGJanuary 2025October 2025Allow910NoNo
19021645PROCESSING WITH COMPACT ARITHMETIC PROCESSING ELEMENTJanuary 2025July 2025Allow620NoNo
19021660PROCESSING WITH COMPACT ARITHMETIC PROCESSING ELEMENTJanuary 2025October 2025Allow920NoNo
19011658METHOD AND APPARATUS FOR LIGHTWEIGHTING OF ARTIFICIAL INTELLIGENCE MODEL USING DEQUANTIZATIONJanuary 2025August 2025Allow700YesNo
19009718SPLINE CURVE INTERPOLATION METHOD AND SYSTEM BASED ON ARC LENGTH PREDICTION AND ITERATIVE TUNINGJanuary 2025January 2026Abandon1320NoNo
18987282METHOD AND SYSTEM FOR DETERMINING SIMILARITIES BETWEEN ENTITIESDecember 2024November 2025Allow1110YesNo
18977582Enhancing Map Data Based on Points of InterestDecember 2024January 2026Allow1310YesNo
18972785ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGDecember 2024November 2025Allow1120YesNo
18972736ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGDecember 2024May 2025Allow510NoNo
18972763ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGDecember 2024June 2025Allow610NoNo
18972773ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGDecember 2024June 2025Allow610NoNo
18972752ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGDecember 2024May 2025Allow610NoNo
18972780ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGDecember 2024September 2025Allow910NoNo
18962490AUTOMATED CATEGORIZATION OF GROUPS IN A SOCIAL NETWORKNovember 2024January 2026Allow1310YesNo
18963469ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGNovember 2024April 2025Allow510NoNo
18963465ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGNovember 2024April 2025Allow510NoNo
18963473ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGNovember 2024February 2025Allow200YesNo
18963462ITERATIVE ATTENTION-BASED NEURAL NETWORK TRAINING AND PROCESSINGNovember 2024April 2025Allow410NoNo
18953674METHOD OF PROCESSING ENCRYPTION OF DATABASE STORAGE DATA AND DATABASE MANAGEMENT SYSTEMNovember 2024November 2025Allow1210YesNo
18949783SYSTEM AND METHOD OF TRANSPOSED MATRIX-VECTOR MULTIPLICATIONNovember 2024December 2025Allow1320YesNo
18936775Media Content Search In Connection With Multiple Media Content ServicesNovember 2024December 2025Allow1310YesNo
18935227SYSTEM AND METHOD FOR GENERATING DATA VISUALIZATION SCORES FOR USE WITH A DATA ANALYTICS ENVIRONMENTNovember 2024January 2026Allow1410YesNo
18925948Artificial Intelligence-Based Image Search RefinementOctober 2024September 2025Allow1110YesNo
18919620HANDLING CONTRADICTORY QUERIERS ON A SHARED DEVICEOctober 2024March 2026Allow1620NoNo
18891244Topic Maps For Constrained Retrieval Augmented GenerationSeptember 2024December 2025Allow1510YesNo
18883329CRYPTOGRAPHICALLY-SECURED SYSTEMS CONFIGURED TO EXECUTE EVENTS-BASED COMMUNICATION PROTOCOLS AND ARCHITECTURES, AND METHODS OF USE THEREOFSeptember 2024March 2026Allow1810YesNo
18826863System and Methods for Personalization and Customization of Search Results and Search Result Ranking in an Internet-Based Search EngineSeptember 2024September 2025Allow1310YesNo
18826949System and Methods for Personalization and Customization of Search Results and Search Result Ranking in an Internet-Based Search EngineSeptember 2024August 2025Allow1110YesNo
18817704SYSTEM AND METHOD FOR USING AN ARTIFICIAL INTELLIGENCE (AI) MODEL TO ROUTE DATAAugust 2024April 2025Allow700NoNo
18813950COMPUTING SYSTEMS AND METHODS FOR GENERATING A RESPONSE TO A QUERY BASED ON A CORPUS OF DOCUMENTSAugust 2024July 2025Allow1110NoNo
18810464Iterative Attention-based Neural Network Training and ProcessingAugust 2024January 2025Allow510NoNo
18810465Iterative Attention-based Neural Network Training and ProcessingAugust 2024January 2025Allow510NoNo
18810460Iterative Attention-based Neural Network Training and ProcessingAugust 2024January 2025Allow510YesNo
18839143SERVER AND METHOD FOR PROCESSING REQUEST FOR SEARCH FOR ON-DEMAND SERVICEAugust 2024March 2026Allow1820NoNo
18805907MATCHING DATABASE RECORD IDENTITY THROUGH INTELLIGENT LABELINGAugust 2024August 2025Allow1210NoNo
18794957MIGRATION TO CLOUD STORAGEAugust 2024July 2025Allow1110NoNo
18792157SYSTEMS AND METHODS OF LARGE LANGUAGE MODEL DRIVEN ORCHESTRATION OF TASK-SPECIFIC MACHINE LEARNING SOFTWARE AGENTSAugust 2024January 2025Allow610YesNo
18784156System and Method for Modification, Personalization and Customization of Search Results and Search Result Ranking in an Internet-Based Search EngineJuly 2024August 2025Allow1210YesNo
18779679CONTENT-BASED OPERATION SELECTIONJuly 2024July 2025Allow1210YesNo
18774775Automated Keyword Generation Based on Similarity ScoreJuly 2024February 2026Allow1920YesNo
18774883UTILIZING PREVIOUS INTERMEDIATE MODEL OUTPUT FOR GENERATING RESPONSESJuly 2024January 2026Allow1820YesNo
18773529GRAPHICAL USER INTERFACE FOR PRESENTATION OF EVENTSJuly 2024October 2025Allow1620NoNo
18769124Data Definitions and Mappings for Seamless Data ImportJuly 2024November 2025Allow1710YesNo
18767411SYSTOLIC ARRAY INCLUDING FUSED MULTIPLY ACCUMULATE WITH EFFICIENT PRENORMALIZATION AND EXTENDED DYNAMIC RANGEJuly 2024February 2026Allow1910NoNo
18763661INLINE CATEGORIZING OF EVENTSJuly 2024August 2025Allow1410NoNo
18758221Generating And Presenting Search Filter RecommendationsJune 2024May 2025Allow1110YesNo
18754719BIT MATRIX MULTIPLICATIONJune 2024October 2025Allow1620YesNo
18739768METHOD AND APPARATUS FOR IMPLIED BIT HANDLING IN FLOATING POINT MULTIPLICATIONJune 2024July 2025Allow1310NoNo
18732618SOFTWARE ORCHESTRATION FRAMEWORK FOR IMPLEMENTING APPLICATION PROGRAMMING INTERFACESJune 2024April 2025Allow1010NoNo
18731157METHOD OF ADDING LANGUAGE INTERPRETER DEVICE TO VIDEO CALLMay 2024November 2025Allow1730NoNo
18679973TECHNIQUES FOR JOINT CONTEXT QUERY REWRITE AND INTENT DETECTIONMay 2024October 2025Allow1720YesNo
18673214METHOD AND SYSTEM FOR ALLOCATING ON-CHIP MEMORY OF NEURAL PROCESSING UNITMay 2024December 2024Allow700YesNo
18668010METHOD FOR AUTOMATED SENSORY PROFILING AND FOOD FORMULATIONMay 2024October 2025Abandon1620NoNo
18665141FLEXIBLE AND SCALABLE ARTIFICIAL INTELLIGENCE AND ANALYTICS PLATFORM WITH FLEXIBLE CONTENT STORAGE AND RETRIEVALMay 2024March 2025Allow1010NoNo
18663992COMPUTER-BASED SYSTEMS CONFIGURED TO DECOUPLE DELIVERY OF PRODUCT CONFIGURATION CHANGES ASSOCIATED WITH CONTINUOUS INTEGRATION/CONTINUOUS DELIVERY PROGRAMMING PIPELINES AND METHODS OF USE THEREOFMay 2024April 2025Allow1110NoNo
18652853VARYING ICONS TO IMPROVE OPERABILITYMay 2024November 2025Abandon1820NoNo
18652738MEDIA TRIGGERED VIRTUAL REPOSITORY WITH TEMPORAL DATA RECOGNITION AND MATCHING ENGINEMay 2024March 2025Allow1010YesNo
18648848USER INTERFACE TRANSITIONS AND OPTIMIZATIONS FOR FOLDABLE COMPUTING DEVICESApril 2024January 2026Abandon2020YesNo
18700320INFORMATION PROCESSING APPARATUS, ANALYSIS SYSTEM, DATA GENERATION METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUMApril 2024November 2025Abandon1920YesNo
18633389SYSTEMS AND METHODS FOR DYNAMIC EVALUATION OF METADATA CONSISTENCY AND DATA RELIABILITYApril 2024May 2025Allow1310YesNo
18620578EMBEDDED APPLICATIONSMarch 2024September 2025Allow1800YesNo
18614504INTEGRATING EXTENSIONS AND CUSTOMIZATIONS ON BLOCKCHAIN WALLETSMarch 2024December 2024Allow810YesNo
18605133CROSS-CORRELATION SYSTEM AND METHOD FOR SPATIAL DETECTION USING A NETWORK OF RF REPEATERSMarch 2024December 2025Allow2131NoNo
18602936Combinatorial Logic Circuits With FeedbackMarch 2024August 2025Allow1820YesNo
18599858PRESENTATION AND CONTROL OF USER INTERACTION WITH AN ARC-SHAPED USER INTERFACE ELEMENTMarch 2024January 2026Allow2220YesNo
18599120PROGRAMMING METHOD OF AN ACTIVATION FUNCTION AND AN ACTIVATION FUNCTION PROGRAMMING UNITMarch 2024October 2024Allow720YesNo
18587519SYSTEMS AND METHODS EMPLOYING UNIQUE DEVICE FOR GENERATING RANDOM SIGNALS AND METERING AND ADDRESSING, E.G., UNUSUAL DEVIATIONS IN SAID RANDOM SIGNALSFebruary 2024June 2025Allow1610NoNo
18582831SURFACING AUGMENTED REALITY OBJECTSFebruary 2024January 2025Allow1010YesNo
18583391COMPUTER SYSTEMS AND METHODS FOR WATCHLIST SCREENINGFebruary 2024February 2026Allow2420YesNo
18444249LOW LATENCY MATRIX MULTIPLY UNITFebruary 2024November 2025Allow2100YesNo
18435607Method for Displaying Different Application Shortcuts on Different ScreensFebruary 2024December 2024Allow1010YesNo
18430529DEPENDENCY MANAGEMENT IN SOFTWARE DEVELOPMENTFebruary 2024February 2025Allow1210YesNo
18425152MULTIPLATFORM MICROSERVICE CONNECTION TECHNIQUESJanuary 2024September 2025Allow1920NoNo
18411826ASSESSING COMPUTER CODE USING MACHINE LEARNINGJanuary 2024January 2026Allow2510YesNo
18399960DIGITAL PROCESSING SYSTEMS AND METHODS FOR FACILITATING THE DEVELOPMENT AND IMPLEMENTATION OF APPLICATIONS IN CONJUNCTION WITH A SERVERLESS ENVIRONMENTDecember 2023August 2024Allow810YesNo
18398046SELECTING REINFORCEMENT LEARNING ACTIONS USING A LOW-LEVEL CONTROLLERDecember 2023April 2025Allow1520NoNo
18543633METHODS AND SYSTEMS FOR MANAGING PROJECTSDecember 2023December 2024Allow1210NoNo
18538942COMPOSITE SOFTWARE BILL OF MATERIALS MANAGEMENTDecember 2023September 2025Allow2100NoNo
18534382PRUNING TECHNIQUES FOR PROCESSING TOP K QUERIESDecember 2023March 2026Allow2720YesNo
18534197TASK ORCHESTRATION SYSTEM IN A TRUSTLESS COMPUTING ENVIRONMENTDecember 2023August 2024Allow910YesNo
18532861Library Model AdditionDecember 2023July 2025Allow1920NoNo
18523339AUTOMATED PUBLIC CERTIFICATION OF SPECIFICATIONS AND SOFTWARENovember 2023December 2025Allow2400YesNo
18523631Using Data Submitted For A Field To Populate A Different, Associated FieldNovember 2023December 2025Allow2510YesNo
18512444METHOD AND APPARATUS FOR SNAPSHOT MANAGEMENTNovember 2023November 2024Allow1210YesNo
18561791BLOCKCHAIN-BASED FEDERATED DATA DISCOVERY AND SHARINGNovember 2023August 2025Allow2120YesNo
18511617COMPUTING DEVICE THAT PERFORMS A METHOD FOR DIAGNOSING PROPERTIES OF DATA AND A SYSTEM COMPRISING THE COMPUTING DEVICENovember 2023August 2025Allow2110NoNo
18389050Dynamic User Interface Schemes for an Electronic Device Based on Detected Accessory DevicesNovember 2023July 2025Allow2020NoNo
18388527METHODS AND SYSTEMS OF CONTROLLING DEPLOYMENT OF SOFTWARE BASED UPON AN APPLICATION RELIABILITY ANALYSISNovember 2023October 2024Allow1130NoNo
18502085CODE EXECUTION METHOD AND DATA PROCESSING DEVICE AND SYSTEMNovember 2023October 2025Allow2310NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2151.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
27
Examiner Affirmed
20
(74.1%)
Examiner Reversed
7
(25.9%)
Reversal Percentile
18.0%
Lower than average

What This Means

With a 25.9% 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
148
Allowed After Appeal Filing
43
(29.1%)
Not Allowed After Appeal Filing
105
(70.9%)
Filing Benefit Percentile
30.7%
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, 29.1% 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 2151 - Prosecution Statistics Summary

Executive Summary

Art Unit 2151 is part of Group 2150 in Technology Center 2100. This art unit has examined 1,661 patent applications in our dataset, with an overall allowance rate of 66.8%. Applications typically reach final disposition in approximately 49 months.

Comparative Analysis

Art Unit 2151's allowance rate of 66.8% places it in the 25% percentile among all USPTO art units. This art unit has a significantly lower allowance rate than most art units at the USPTO.

Prosecution Patterns

Applications in Art Unit 2151 receive an average of 2.01 office actions before reaching final disposition (in the 60% percentile). The median prosecution time is 49 months (in the 2% 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 longer 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.