USPTO Art Unit 2858 Prosecution Statistics

Art Unit Information

Art Unit: 2858
Group: 2850
Tech Center: 2800
Total Cases: 23,085
Last Active: September 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19338667SYSTEM AND METHOD FOR SENSING PLANT ELECTRICAL SIGNALSSeptember 2025December 2025Allow200NoNo
19314450Streaming Current MonitorAugust 2025March 2026Allow620NoNo
19279049RF-BASED SPECIAL MATERIAL DETECTION SYSTEM WITH SECURE MULTI-DIMENSIONAL AUTHENTICATIONJuly 2025January 2026Allow510NoNo
19260452OPTICAL-PATH FOLDING-ELEMENT WITH AN EXTENDED TWO DEGREE OF FREEDOM ROTATION RANGEJuly 2025August 2025Allow100NoNo
19258831AUTOMATED TEMPERATURE COMPENSATION METHOD, APPARATUS AND STORAGE MEDIUMJuly 2025December 2025Allow610NoNo
19254162METHOD AND DEVICE FOR SINGLE EVENT EFFECT TESTING OF LARGE CAPACITY SOLID STATE DRIVES BASED ON HIGH-ENERGY PARTICLESJune 2025August 2025Allow100NoNo
19252698MAGNETIC MOMENT MEASUREMENT SYSTEM AND METHODJune 2025August 2025Allow200NoNo
19240841PROTECTING A POWER INVERTER BY SENSING A PHASE NODE VOLTAGEJune 2025December 2025Allow610NoNo
19231983VEHICLE MAGNETOMETER CALIBRATION SYSTEMJune 2025July 2025Allow200NoNo
19229428WELDING WIRE REMAINING AMOUNT DETECTION AND WARNING SYSTEMJune 2025November 2025Allow500YesNo
19220004Randomly Distributed Tensor Resistivity Measurement Method and SystemMay 2025November 2025Allow500NoNo
19217328MAILPIECE MAGNETIC INK CONTENT RECOGNITION DETECTION SYSTEMMay 2025June 2025Allow100NoNo
19208369CAPACITOR-BASED SENSOR WITH INTERMITTENCY SENSITIVITYMay 2025June 2025Allow100NoNo
19201257WAFER SCALE ACTIVE THERMAL INTERPOSER FOR DEVICE TESTINGMay 2025September 2025Allow510YesNo
19201208WAFER SCALE ACTIVE THERMAL INTERPOSER FOR DEVICE TESTINGMay 2025September 2025Allow510YesNo
19201163WAFER SCALE ACTIVE THERMAL INTERPOSER FOR DEVICE TESTINGMay 2025September 2025Allow510YesNo
19201619ELECTRONIC DEVICE AGING TEST APPARATUSMay 2025July 2025Allow200NoNo
19200605UNIVERSAL CHANNEL DEVICE AND CONTROL METHOD FOR ELECTROMAGNETIC INSTRUMENTMay 2025September 2025Allow410NoNo
19123512Superparamagnetic Transducer And Corresponding Magnetic Field Flow Sensor For Measuring A Direct CurrentApril 2025March 2026Allow1000NoNo
19123678MULTI-ROTATION ANGLE DETECTION DEVICEApril 2025February 2026Allow1000NoNo
19123707MULTI-ROTATION ANGLE DETECTION DEVICE, AND SEGMENT COUNTER FOR SAMEApril 2025March 2026Allow1000NoNo
19123280RADIO ASSEMBLY COMPRISING REMOVABLE COMPONENTS AND METHOD FOR ASSEMBLYApril 2025February 2026Allow1000NoNo
19185082MICROMECHANICAL INTERMITTENCY-BASED ANALYTE SENSORApril 2025July 2025Allow210NoNo
19120880SYSTEM AND METHOD FOR WIRELESS CHARGING FOREIGN OBJECT DETECTIONApril 2025May 2025Allow100NoNo
19177091TESTING METHOD FOR CARRIER MOBILITY OF INSULATING POLYMERSApril 2025June 2025Allow200NoNo
19174420METHOD FOR TESTING AND EVALUATING LATERAL STIFFNESS OF SMALL BOX GIRDER BRIDGEApril 2025May 2025Allow100NoNo
19173907Method and System for Assessing a Metallic Structure Arranged within an ElectrolyteApril 2025September 2025Allow510NoNo
19169043Signal Saturation Method for Achieving Spatial Selection under Non-uniform Field, and MediumApril 2025October 2025Allow610YesNo
19169418Characterizing Radio Frequency Sources Based on Data from a Vapor Cell Sensor SystemApril 2025October 2025Allow710YesNo
19169371Characterizing Radio Frequency Sources Using Vapor Cell SensorsApril 2025August 2025Allow510YesNo
19098499SIGNAL PROCESSING APPARATUS AND METHOD, AND DIGITAL OSCILLOSCOPEApril 2025October 2025Allow610YesNo
19098612Intelligent MV and HV Circuit Breaker Testing & Diagnosing UnitApril 2025January 2026Allow1010NoNo
19095155SYSTEM AND METHOD FOR DYNAMIC GAIN SWITCHING IN DETECTING OBJECTS BEHIND AN OPAQUE SURFACEMarch 2025September 2025Allow510YesNo
19095182SYSTEM AND METHOD FOR DETECTING OBJECTS BEHIND AN OPAQUE SURFACEMarch 2025October 2025Allow610YesNo
18834816MEASUREMENT APPARATUS, MEASUREMENT METHOD, AND MEASUREMENT PROGRAMMarch 2025July 2025Allow1110NoNo
19087466SHORT-OFFSET TRANSIENT ELECTROMAGNETIC TRANSMISSION SYSTEMMarch 2025May 2025Allow200NoNo
19086173BATTERY TRAY, BATTERY TESTING MODULE, BATTERY TESTING SYSTEM AND BATTERY PRODUCTION SYSTEMMarch 2025July 2025Allow410NoNo
19085728DIFFERENTIAL DUAL SENSOR CONTACTLESS MAGNETIC-MODE ELECTRICAL CURRENT SENSORS WITH TAMPER DETECTIONMarch 2025November 2025Allow810NoNo
19112747METHOD FOR DETECTING EARTH FAULTS AND FREQUENCY CONVERTER SYSTEM WITH EARTH FAULT DETECTIONMarch 2025September 2025Allow610NoNo
19107353TESTER AND TEST CONTROL DEVICE AND METHODFebruary 2025January 2026Allow1100NoNo
19056475MAILPIECE MAGNETIC INK CONTENT RECOGNITION DETECTION SYSTEMFebruary 2025March 2025Allow100YesNo
19054780METHOD FOR MONITORING DEGRADATION MECHANISM OF SWITCH DEVICE IN POWER CONVERSION CIRCUITFebruary 2025April 2025Allow200NoNo
19103823EDDY CURRENT TESTING CIRCUIT, METHOD AND SYSTEM, STORAGE MEDIUM, AND TERMINALFebruary 2025November 2025Allow911YesNo
19049923TECHNIQUES FOR DETERMINING A RESISTANCE OF ELECTRICAL CONDUCTORS PROVIDING ELECTRICAL POWER TO A RADIOFebruary 2025July 2025Allow500NoNo
19101952AN ELECTROMAGNETIC FIELD DETECTORFebruary 2025July 2025Allow500NoNo
19046550HALL SENSOR - MAGNET GEOMETRY FOR LARGE STROKE LINEAR POSITION SENSINGFebruary 2025June 2025Allow510NoNo
18997293SOIL CARBON SENSOR AND SENSING ARRANGEMENTJanuary 2025May 2025Allow400NoNo
19031335RICE AND WHEAT NITROGEN NUTRITION MULTISPECTRAL DIAGNOSIS METHOD FOR PRECISE FERTILIZATION BY UNMANNED AERIAL VEHICLESJanuary 2025April 2025Allow300NoNo
18996190GENERATOR SET CIRCUIT BREAKER APPARATUS SYNCHRONIZATION TEST METHOD AND APPARATUS, DEVICE, AND MEDIUMJanuary 2025May 2025Allow400NoNo
18995774LINEAR ARRAY SCANNING DEVICE AND CONTROL METHODJanuary 2025September 2025Allow810NoNo
19021837Tesla Photoionization DetectorJanuary 2025May 2025Allow400NoNo
18850693MAGNETOSTRICTIVE DISPLACEMENT SENSOR CALIBRATION METHOD, SYSTEM, DEVICE, AND STORAGE MEDIUMJanuary 2025March 2025Allow600NoNo
19006271PHANTOM FOR MULTINUCLEAR SIMULTANEOUS INTEGRATED MAGNETIC RESONANCE IMAGING AND APPLICATION METHOD THEREOFDecember 2024May 2025Allow510YesNo
19006032ADAPTIVE GAIN TRANSIENT ELECTROMAGNETIC RECEIVING SYSTEM BASED ON EXPONENTIAL PREDICTION AND METHOD THEREOFDecember 2024July 2025Allow710NoNo
19004581GAN HEMT DEVICE FOR IRRADIATION DAMAGE DETECTION AND DETECTION AND MANUFACTURING METHOD THEREFORDecember 2024March 2025Allow200YesNo
19003008PIPELINE SPANNING OR SETTLEMENT BENDING DETECTION DEVICE AND METHODDecember 2024July 2025Allow710NoNo
19002737EXPERIMENTAL APPARATUS AND TEST METHOD FOR PULSE LASER IRRADIATION WIDE BANDGAP POWER DEVICEDecember 2024July 2025Allow700NoNo
19001271SYSTEMS AND METHODS FOR SENSING ENVIRONMENTAL CONDITIONS SURROUNDING PHOTOVOLTAIC SYSTEMSDecember 2024March 2025Allow300NoNo
18999948WAFER SCALE ACTIVE THERMAL INTERPOSER FOR DEVICE TESTINGDecember 2024November 2025Allow1120YesNo
18877764DEVICE FOR DETECTING A SHORT-CIRCUIT FAULT IN A WINDING OF AN ELECTRIC MACHINEDecember 2024June 2025Allow510NoNo
18981467SUBSURFACE DEFECT DETECTING DEVICE FOR CYLINDRICAL COMPONENTS AND METHOD THEREOFDecember 2024April 2025Allow400NoNo
18874977PLUGGABLE LOAD MODULE TO TEST A VOLTAGE REGULATORDecember 2024March 2025Allow300NoNo
18978926SENSING PLASTICS WITH ELECTRODE SENSOR TO MONITOR FLUID ENVIRONMENTSDecember 2024September 2025Allow910NoNo
18975398SYSTEM AND METHOD OF TESTING FOR RF-INDUCED ELECTROMIGRATION IN SEMICONDUCTOR INTEGRATED CIRCUITSDecember 2024February 2025Allow200NoNo
18972841Method for Calculating Wellbore Friction Resistance of Foam Drainage Gas Production WellDecember 2024July 2025Allow720YesNo
18970987MEASUREMENT METHOD FOR IMPEDANCE OF CONVERTER AT MULTIPLE OPERATING POINTS BASED ON SECONDARY-SIDE DISTURBANCEDecember 2024February 2025Allow200NoNo
18967224Three-Dimensional Sweep Probe SystemDecember 2024March 2025Allow300NoNo
18963573INTEGRATION AND CALIBRATION METHOD OF GEOMAGNETIC VECTOR MEASURING DEVICE FOR EXPLORATIONNovember 2024July 2025Allow711NoNo
18961530AUTOMATED RESONANCE CONTROL FOR NV MAGNETOMETERSNovember 2024March 2025Allow300NoNo
18961577Method and system for detecting oil abrasive particle sizeNovember 2024February 2025Allow300NoNo
18960431METHOD AND SYSTEM FOR CALIBRATING A CONTROLLER THAT DETERMINES A RESISTANCE OF A LOADNovember 2024April 2025Allow400NoNo
18959086METHOD AND INSULATION MONITORING ARRANGEMENT FOR A FUNCTIONALLY GROUNDED ELECTRIC INSTALLATION OPERATED USING A SUPPLY DIRECT VOLTAGENovember 2024November 2025Allow1200NoNo
18868425METHOD FOR CODING COMMUNICATION CONDUCTORS OF A LINEAR SENSOR BELONGING TO A SYSTEMNovember 2024May 2025Allow610NoNo
18868318INTEGRATED TOOL WITH CIRCUIT TRACER, RECEPTACLE TESTER, AND/OR LOAD CONTINUITY TESTERNovember 2024April 2025Allow500NoNo
18952659INTERCONNECTION BETWEEN HOUSEHOLD MICROGRID AND UTILITY GRIDNovember 2024July 2025Allow811NoNo
18951800GENERATION METHOD AND SIMULATION METHOD OF MAGENTIC CONFIGURATION OF MAGNETIC MATERIALNovember 2024February 2025Allow300NoNo
18948333Mapping Objects behind an Opaque Surface Using Signal DensityNovember 2024January 2025Allow210NoNo
18941053INDUCED POLARIZATION METHOD AND SYSTEM MOUNTED ON WHILE DRILLING-TYPE DRILL RIG BASED ON LONG-LENGTH POWER SOURCE FOR WATER DETECTION IN TUNNELSNovember 2024February 2025Allow300NoNo
18939880Using a Magnetic Recording for AuthenticationNovember 2024September 2025Allow1010NoNo
18938463Mechanism and Method of Protection, Monitoring and Control of Switchgear Using Rogowski Coils and Capacitive Voltage Divider-Like Devices Surrounding the Bottles with ICs for Converting Analog to Digital Signals and LookUp Table on the ICNovember 2024December 2024Allow100NoNo
18938584RF TRANSMIT AND RECEIVER ANTENNA DETECTOR SYSTEMNovember 2024June 2025Allow710NoNo
18936543Distribution Line Ground Fault Prevention With Blown Fuse Protection On Single PhaseNovember 2024June 2025Allow710NoNo
18936500RF-BASED SPECIAL MATERIAL DETECTION SYSTEM WITH SECURE MULTI-DIMENSIONAL AUTHENTICATIONNovember 2024March 2025Allow510YesNo
18935528DIFFERENTIAL DUAL SENSOR CONTACTLESS MAGNETIC-MODE ELECTRICAL CURRENT SENSORS WITH TAMPER DETECTIONNovember 2024July 2025Allow811NoNo
18929599SELF-CALIBRATING RADIO FREQUENCY CALORIMETEROctober 2024February 2026Allow1620YesNo
18859430SYSTEMS AND METHODS FOR TESTING INTEGRATED CIRCUITS INDEPENDENT OF CHIP PACKAGE CONFIGURATIONOctober 2024October 2025Allow1210NoNo
18922363MAGNETIC PARTICLE IMAGING (MPI) DEVICE BASED ON ASYMMETRIC BILATERAL STRUCTUREOctober 2024February 2025Allow300NoNo
18921840RF-BASED MATERIAL DETECTION DEVICE THAT USES SPECIFIC ANTENNAS DESIGNED FOR SPECIFIC SUBSTANCESOctober 2024June 2025Allow810YesNo
18919850Detecting Off-Resonance Signals in a Vapor Cell SensorOctober 2024January 2025Allow300NoNo
18917413WAVE-ABSORBING METHOD AND DEVICE FOR MARINE PASTUREOctober 2024November 2025Abandon1320NoNo
18917911ELECTRONICS TESTEROctober 2024December 2024Allow200NoNo
18915936Novel Variable Reluctance ResolverOctober 2024January 2025Allow300YesNo
18914904ELECTROMAGNETIC TOOL USING SLOTTED POINT DIPOLE ANTENNASOctober 2024December 2025Allow1410NoNo
18856722METHOD FOR TESTING A PACKAGING SUBSTRATE, AND APPARATUS FOR TESTING A PACKAGING SUBSTRATEOctober 2024June 2025Allow800YesNo
18856532A method of control of the rotation speed of the shafts of a double shaft shredder, program for running this method and shredder which includes such a programOctober 2024June 2025Allow800NoNo
18902985SYSTEMS DEVICES AND METHODS FOR ADVANCED CABLE TESTINGOctober 2024March 2025Allow510NoNo
18897056MULTISPECTRAL LIGHT FIELD IMAGING SYSTEM, THREE-DIMENSIONAL TEMPERATURE FIELD MEASUREMENT METHOD AND MEASUREMENT SYSTEMSeptember 2024March 2025Allow510YesNo
18896823Continuous Whole-Home Water Quality AnalyzerSeptember 2024February 2026Allow1630YesNo
18849562Horizontal Hall Device and Preparation MethodSeptember 2024March 2025Allow601NoNo
18893251SYSTEMS AND METHODS FOR MACHINE LEARNING ENABLED FAULT DETECTION IN RECHARGEABLE BATTERIESSeptember 2024January 2025Allow420YesNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2858.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
180
Examiner Affirmed
115
(63.9%)
Examiner Reversed
65
(36.1%)
Reversal Percentile
67.6%
Higher than average

What This Means

With a 36.1% reversal rate, the PTAB reverses the examiner's rejections in a meaningful percentage of cases. This reversal rate is above the USPTO average, indicating that appeals have better success here than typical.

Strategic Value of Filing an Appeal

Total Appeal Filings
817
Allowed After Appeal Filing
313
(38.3%)
Not Allowed After Appeal Filing
504
(61.7%)
Filing Benefit Percentile
82.7%
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, 38.3% 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 2858 - Prosecution Statistics Summary

Executive Summary

Art Unit 2858 is part of Group 2850 in Technology Center 2800. This art unit has examined 23,085 patent applications in our dataset, with an overall allowance rate of 84.5%. Applications typically reach final disposition in approximately 29 months.

Comparative Analysis

Art Unit 2858's allowance rate of 84.5% places it in the 79% 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 2858 receive an average of 1.42 office actions before reaching final disposition (in the 18% percentile). The median prosecution time is 29 months (in the 61% 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.