USPTO Art Unit 2891 Prosecution Statistics

Art Unit Information

Art Unit: 2891
Group: 2890
Tech Center: 2800
Total Cases: 16,598
Last Active: December 2024

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19004515WIDE BANDGAP SEMICONDUCTOR STRUCTURE FOR IRRADIATION CHARACTERISTIC TEST AND PREPARATION METHOD THEREOFDecember 2024March 2025Allow300NoNo
18879459OPTOELECTRONIC DEVICE WITH REFLECTORDecember 2024June 2025Allow500NoNo
18869453TRENCH GATE POWER MOSFET AND MANUFACTURING METHOD THEREFORNovember 2024March 2025Allow400NoNo
18864780SUPER-SEMICONDUCTORS BASED ON NANOSTRUCTURED ARRAYSNovember 2024February 2025Allow300NoNo
18924840MONOLITHIC RGB MICROLED ARRAYOctober 2024June 2025Allow801NoNo
18916467P-GAN HIGH ELECTRON MOBILITY TRANSISTOR (HEMT) WITH MOS2-BASED 2D BARRIEROctober 2024December 2024Allow200NoNo
18901832OPTOELECTRONIC DEVICE AND MANUFACTURING METHODSeptember 2024March 2025Allow610NoNo
18895947SEMICONDUCTOR DEVICESeptember 2024November 2024Allow200NoNo
18893967METHOD FOR MANUFACTURING SEMICONDUCTOR STACK STRUCTURE WITH ULTRA THIN DIESeptember 2024April 2025Allow611NoNo
18893715SEMICONDUCTOR DEVICESeptember 2024January 2025Allow410NoNo
18884085Method for Packaging Stacking Flip ChipSeptember 2024January 2025Allow401NoNo
18846211MANUFACTURING METHOD FOR POWER SEMICONDUCTOR DEVICE USING LOW-ENERGY ELECTRON RADIATION TO PRODUCE SILICON-ENRICHED LAYERSeptember 2024June 2025Allow910NoNo
18846163SEMICONDUCTOR DEVICE FOR POWER AMPLIFICATIONSeptember 2024March 2025Allow600NoNo
18827272VERTICAL POWER SEMICONDUCTOR DEVICE INCLUDING SILICON CARBIDE (SIC) SEMICONDUCTOR BODYSeptember 2024December 2024Allow400NoNo
18799155METHOD FOR MANUFACTURING A COLOUR CONVERSION OPTOELECTRONIC DEVICE, INCLUDING A STEP OF OPTICALLY FORMING SURFACE POTENTIAL PATTERNS IN AN ELECTRET LAYERAugust 2024October 2024Allow200NoNo
18791575INHERENT AREA SELECTIVE DEPOSITION OF SILICON-CONTAINING DIELECTRIC ON METAL SUBSTRATEAugust 2024April 2025Allow900NoNo
18765653METHODS OF FORMING WIRE INTERCONNECT STRUCTURES AND RELATED WIRE BONDING TOOLSJuly 2024April 2025Allow900YesNo
18761282HIGH ELECTRON MOBILITY TRANSISTOR AND METHOD FOR FORMING THE SAMEJuly 2024May 2025Allow1010NoNo
18760559TRANSISTOR ARRANGEMENT WITH A LOAD TRANSISTOR AND A SENSE TRANSISTORJuly 2024May 2025Allow1010NoNo
18759212SEMICONDUCTOR DEVICE AND METHOD FOR FORMING THE SAMEJune 2024May 2025Allow1010NoNo
18754058HETEROGENEOUS INTEGRATION OF RADIO FREQUENCY TRANSISTOR CHIPLETS HAVING INTERCONNECTIONS TO HOST WAFER CIRCUITS FOR OPTIMIZING OPERATING CONDITIONSJune 2024November 2024Allow510YesNo
18723764POWER SEMICONDUCTOR DEVICE AND MANUFACTURIING METHODJune 2024September 2024Allow200NoNo
18752525METHODS OF FORMING MICROELECTRONIC DEVICES INCLUDING DIFFERENTLY SIZED CONDUCTIVE CONTACT STRUCTURESJune 2024June 2025Allow1210NoNo
18746913DISPLAY APPARATUSJune 2024June 2025Allow1210NoNo
18743061HIGH ELECTRON MOBILITY TRANSISTOR AND METHOD FOR FABRICATING THE SAMEJune 2024March 2025Allow900NoNo
18741602DISPLAY PANEL AND DISPLAY DEVICE INCLUDING DISPLAY PANELJune 2024February 2025Allow900NoNo
18732645HIGH ELECTRON MOBILITY TRANSISTOR AND METHOD FOR FABRICATING THE SAMEJune 2024March 2025Allow900YesNo
18675405DISPLAY SUBSTRATE, MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICEMay 2024April 2025Allow1010NoNo
18663458DISPLAY PANEL AND MANUFACTURE METHOD THEREOF, AND DISPLAY APPARATUSMay 2024March 2025Allow1010NoNo
18660956LATERAL BIPOLAR TRANSISTORSMay 2024April 2025Allow1110NoNo
18658471MANUFACTURING METHOD AND SEMICONDUCTOR DEVICEMay 2024April 2025Allow1210NoNo
18654016BONDING TOOL AND BONDING METHOD THEREOFMay 2024June 2025Allow1301YesNo
18647027GAN HEMT TRANSISTOR WITH IMPACT ENERGY RELEASE CAPABILITY FOR USE IN AEROSPACE IRRADIATION ENVIRONMENT AND PREPARATION METHOD THEREOFApril 2024January 2025Allow910NoNo
18640126METHODS AND STRUCTURES FOR CONTACTING SHIELD CONDUCTOR IN A SEMICONDUCTOR DEVICEApril 2024June 2025Allow1310NoNo
18638735MONOLITHICALLY INTEGRATED GAN-BASED HALF-BRIDGE CIRCUIT AND HALF-BRIDGE CIRCUITApril 2024June 2024Allow200NoNo
18634027SEMICONDUCTOR DEVICEApril 2024June 2025Allow1401NoNo
18631091SEMICONDUCTOR DEVICE AND FABRICATING METHOD THEREOFApril 2024April 2025Allow1220NoNo
18699821SEMICONDUCTOR DEVICEApril 2024August 2024Allow400NoNo
18627193TRANSPARENT DISPLAY PANEL AND TRANSPARENT DISPLAY DEVICE INCLUDING THE SAMEApril 2024April 2025Allow1210NoNo
18622003SOLID-STATE IMAGING ELEMENT AND IMAGING APPARATUSMarch 2024February 2025Allow1110NoNo
18622615SELF-ALIGNED GATE ENDCAP (SAGE) ARCHITECTURES WITH VERTICAL SIDEWALLSMarch 2024October 2024Allow600NoNo
18619304METHOD AND SYSTEM FOR ETCH DEPTH CONTROL IN III-V SEMICONDUCTOR DEVICESMarch 2024April 2025Allow1310NoNo
18618158FIELD-EFFECT TRANSISTOR INCLUDING TRANSPARENT OXIDE AND LIGHT-SHIELDING MEMBER, AND DISPLAY UTILIZING THE TRANSISTORMarch 2024May 2025Allow1430YesNo
18615936NOVEL RESISTIVE RANDOM ACCESS MEMORY DEVICEMarch 2024April 2025Allow1310NoNo
18609645SEMICONDUCTOR DEVICEMarch 2024September 2024Allow600NoNo
18609778LATERALLY-GATED TRANSISTORS AND LATERAL SCHOTTKY DIODES WITH INTEGRATED LATERAL FIELD PLATE STRUCTURESMarch 2024January 2025Allow1010NoNo
18607571SEMICONDUCTOR PACKAGE AND MANUFACTURING METHOD OF SEMICONDUCTOR PACKAGEMarch 2024January 2025Allow1010NoNo
18608890MANUFACTURING METHOD OF SEMICONDUCTOR DEVICEMarch 2024December 2024Allow910NoNo
18605438SEMICONDUCTOR DEVICE INCLUDING TRENCH GATE STRUCTURE AND BURIED SHIELDING REGION AND METHOD OF MANUFACTURINGMarch 2024January 2025Allow1010NoNo
18603723POWER SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAMEMarch 2024October 2024Allow700NoNo
18601289DIAMOND-LIKE CARBON COATING FOR PASSIVE AND ACTIVE ELECTRONICSMarch 2024June 2025Allow1510NoNo
18599205SEMICONDUCTOR DEVICE AND MANUFACTURING METHOD OF SEMICONDUCTOR DEVICEMarch 2024March 2025Allow1210NoNo
18600031SEMICONDUCTOR DEVICE WITH FINE METAL LINES FOR BEOL STRUCTURE AND METHOD OF MANUFACTURING THE SAMEMarch 2024November 2024Allow800NoNo
18600348White Light LED with Rubidium Vapor Emission In Nested Enclosure Optimizing Human Vision and Horticultural Pigment IrradianceMarch 2024May 2024Allow300NoNo
18599051ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DEVICE INCLUDING THE SAMEMarch 2024January 2025Allow1010NoNo
18597172CHIP BONDING APPARATUS AND SECURING ASSEMBLY THEREFORMarch 2024May 2024Allow200NoNo
18591803Epitaxial Structure And Transistor Including The SameFebruary 2024November 2024Allow810NoNo
18588783SEMICONDUCTOR DEVICE HAVING WORK FUNCTION METAL STACKFebruary 2024February 2025Allow1210NoNo
18585574LIGHT BLOCKING LOUVER PANEL FOR AN LED LIGHT DISPLAYFebruary 2024January 2025Allow1110NoNo
18583955AN ELECTRONIC MODULE INCLUDING A SEMICONDUCTOR PACKAGE DISPOSED ON AN INTERPOSER LAYERFebruary 2024June 2025Allow1610NoNo
18685871BONDING WIRE FOR SEMICONDUCTOR DEVICESFebruary 2024June 2024Allow400NoNo
18582153LAYOUT TECHNIQUES AND OPTIMIZATION FOR POWER TRANSISTORSFebruary 2024March 2025Allow1310NoNo
18582381WAFER BONDING APPARATUS AND METHODFebruary 2024June 2025Allow1610NoNo
18444277CHELATING AGENTS FOR QUANTUM DOT PRECURSOR MATERIALS IN COLOR CONVERSION LAYERS FOR MICRO-LEDSFebruary 2024December 2024Allow1010NoNo
18443613DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAMEFebruary 2024February 2025Allow1210NoNo
18441082RECESSED GATE FOR AN MV DEVICEFebruary 2024March 2025Allow1310NoNo
18438882LATERAL BIPOLAR TRANSISTORS WITH GATE STRUCTURE ALIGNED TO EXTRINSIC BASEFebruary 2024March 2025Allow1410YesNo
18439018PROCESSING METHOD, METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE, PROCESSING APPARATUS, AND RECORDING MEDIUMFebruary 2024March 2025Allow1310NoNo
18437691IMAGE SENSORFebruary 2024February 2025Allow1310YesNo
18433863Memory Array and Methods Used in Forming a Memory ArrayFebruary 2024December 2024Allow1010NoNo
18433426INFRARED DETECTING DEVICEFebruary 2024May 2025Allow1501NoNo
18432812SEMICONDUCTOR DEVICEFebruary 2024December 2024Allow1010NoNo
18431753IMAGE SENSOR DEVICEFebruary 2024January 2025Allow1210NoNo
18429960MODULE WITH HIGH PEAK BANDWIDTH I/O CHANNELSFebruary 2024April 2025Allow1400NoNo
18422346DIELECTRIC LINERS ON THROUGH GLASS VIASJanuary 2024July 2024Allow501YesNo
18422017METHOD OF MANUFACTURING SEMICONDUCTOR DEVICEJanuary 2024January 2025Allow1210NoNo
18420777SEMICONDUCTOR DEVICE HAVING BURIED GATE STRUCTURE AND METHOD FOR FABRICATING THE SAMEJanuary 2024August 2024Allow600NoNo
18419818VERTICAL TYPE SEMICONDUCTOR DEVICES AND METHODS OF MANUFACTURING THE SAMEJanuary 2024November 2024Allow1010NoNo
18580161Trench SiC MOSFET Integrated with High-speed Flyback Diode and Preparation Method ThereofJanuary 2024July 2024Allow500NoNo
18416764HIGH ELECTRON MOBILITY TRANSISTOR AND METHOD FOR FORMING THE SAMEJanuary 2024November 2024Allow1010NoNo
18416243Integrated Circuitry, A Memory Array Comprising Strings Of Memory Cells, A Method Used In Forming A Conductive Via, A Method Used In Forming A Memory Array Comprising Strings Of Memory CellsJanuary 2024November 2024Allow1000NoNo
18413078SEMICONDUCTOR DEVICE HAVING FIN STRUCTUREJanuary 2024October 2024Allow900NoNo
18412645MANUFACTURING METHOD FOR SILICON NITRIDE THIN FILM, THIN FILM TRANSISTOR AND DISPLAY PANELJanuary 2024November 2024Allow1000NoNo
18410333METHOD OF FORMING AN ELECTRONIC STRUCTURE USING REFORMING GAS, SYSTEM FOR PERFORMING THE METHOD, AND STRUCTURE FORMED USING THE METHODJanuary 2024January 2025Allow1210NoNo
18410823OPTOELECTRONIC DEVICE AND METHOD FOR MANUFACTURING THE SAMEJanuary 2024September 2024Allow900NoNo
18578607SEMICONDUCTOR DEVICEJanuary 2024July 2024Allow600NoNo
18409424SEMICONDUCTOR DEVICE HAVING BASE REGION BENEATH TRENCH GATEJanuary 2024December 2024Allow1110NoNo
18405806SEMICONDUCTOR DEVICE PACKAGEJanuary 2024June 2025Allow1720NoNo
18402971RF SWITCH DEVICE WITH A SIDEWALL SPACER HAVING A LOW DIELECTRIC CONSTANTJanuary 2024August 2024Allow800NoNo
18398823SILICON CARBIDE DEVICE WITH A STRIPE-SHAPED TRENCH GATE STRUCTUREDecember 2023November 2024Allow1110NoNo
18399127EMBEDDED LIQUID COOLINGDecember 2023July 2024Allow700NoNo
18397505EMBEDDED COOLING ASSEMBLIES FOR ADVANCED DEVICE PACKAGING AND METHODS OF MANUFACTURING THE SAMEDecember 2023July 2024Allow700YesNo
18398124MICRO DEVICE ARRANGEMENT IN DONOR SUBSTRATEDecember 2023May 2025Allow1720NoNo
18395756SEMICONDUCTOR DEVICE AND PRODUCTION METHODDecember 2023October 2024Allow1010NoNo
18394688SEMICONDUCTOR DEVICEDecember 2023April 2024Allow410NoNo
18394110DISPLAY DEVICEDecember 2023November 2024Allow1110NoNo
18393704DISPLAY DEVICEDecember 2023February 2025Allow1410NoNo
18395174MANUFACTURING METHOD OF AN ELEMENT OF AN ELECTRONIC DEVICE HAVING IMPROVED RELIABILITY, AND RELATED ELEMENT, ELECTRONIC DEVICE AND ELECTRONIC APPARATUSDecember 2023November 2024Allow1110YesNo
18391678NITRIDE SEMICONDUCTOR DEVICEDecember 2023September 2024Allow900NoNo
18534480OPENINGS LAYOUT OF THREE-DIMENSIONAL MEMORY DEVICEDecember 2023March 2025Allow1510YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2891.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
118
Examiner Affirmed
83
(70.3%)
Examiner Reversed
35
(29.7%)
Reversal Percentile
35.9%
Lower than average

What This Means

With a 29.7% 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
520
Allowed After Appeal Filing
162
(31.2%)
Not Allowed After Appeal Filing
358
(68.8%)
Filing Benefit Percentile
41.1%
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, 31.2% 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 2891 - Prosecution Statistics Summary

Executive Summary

Art Unit 2891 is part of Group 2890 in Technology Center 2800. This art unit has examined 16,598 patent applications in our dataset, with an overall allowance rate of 80.6%. Applications typically reach final disposition in approximately 25 months.

Comparative Analysis

Art Unit 2891's allowance rate of 80.6% places it in the 60% percentile among all USPTO art units. This art unit has an above-average allowance rate compared to other art units.

Prosecution Patterns

Applications in Art Unit 2891 receive an average of 1.68 office actions before reaching final disposition (in the 37% percentile). The median prosecution time is 25 months (in the 74% 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.