USPTO Art Unit 2858 Prosecution Statistics

Art Unit Information

Art Unit: 2858
Group: 2850
Tech Center: 2800
Total Cases: 25,965
Last Active: April 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19120880SYSTEM AND METHOD FOR WIRELESS CHARGING FOREIGN OBJECT DETECTIONApril 2025May 2025Allow100NoNo
19174420METHOD FOR TESTING AND EVALUATING LATERAL STIFFNESS OF SMALL BOX GIRDER BRIDGEApril 2025May 2025Allow100NoNo
19087466SHORT-OFFSET TRANSIENT ELECTROMAGNETIC TRANSMISSION SYSTEMMarch 2025May 2025Allow200NoNo
19056475MAILPIECE MAGNETIC INK CONTENT RECOGNITION DETECTION SYSTEMFebruary 2025March 2025Allow100YesNo
19054780METHOD FOR MONITORING DEGRADATION MECHANISM OF SWITCH DEVICE IN POWER CONVERSION CIRCUITFebruary 2025April 2025Allow200NoNo
19046550HALL SENSOR - MAGNET GEOMETRY FOR LARGE STROKE LINEAR POSITION SENSINGFebruary 2025June 2025Allow510NoNo
18997293SOIL CARBON SENSOR AND SENSING ARRANGEMENTJanuary 2025May 2025Allow400NoNo
18996190GENERATOR SET CIRCUIT BREAKER APPARATUS SYNCHRONIZATION TEST METHOD AND APPARATUS, DEVICE, AND MEDIUMJanuary 2025May 2025Allow400NoNo
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
19004581GAN HEMT DEVICE FOR IRRADIATION DAMAGE DETECTION AND DETECTION AND MANUFACTURING METHOD THEREFORDecember 2024March 2025Allow200YesNo
19001271SYSTEMS AND METHODS FOR SENSING ENVIRONMENTAL CONDITIONS SURROUNDING PHOTOVOLTAIC SYSTEMSDecember 2024March 2025Allow300NoNo
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
18975398SYSTEM AND METHOD OF TESTING FOR RF-INDUCED ELECTROMIGRATION IN SEMICONDUCTOR INTEGRATED CIRCUITSDecember 2024February 2025Allow200NoNo
18970987MEASUREMENT METHOD FOR IMPEDANCE OF CONVERTER AT MULTIPLE OPERATING POINTS BASED ON SECONDARY-SIDE DISTURBANCEDecember 2024February 2025Allow200NoNo
18967224Three-Dimensional Sweep Probe SystemDecember 2024March 2025Allow300NoNo
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
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
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
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
18936543Distribution Line Ground Fault Prevention With Blown Fuse Protection On Single PhaseNovember 2024June 2025Allow710NoNo
18922363MAGNETIC PARTICLE IMAGING (MPI) DEVICE BASED ON ASYMMETRIC BILATERAL STRUCTUREOctober 2024February 2025Allow300NoNo
18917911ELECTRONICS TESTEROctober 2024December 2024Allow200NoNo
18915936Novel Variable Reluctance ResolverOctober 2024January 2025Allow300YesNo
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
18897056MULTISPECTRAL LIGHT FIELD IMAGING SYSTEM, THREE-DIMENSIONAL TEMPERATURE FIELD MEASUREMENT METHOD AND MEASUREMENT SYSTEMSeptember 2024March 2025Allow510YesNo
18849562Horizontal Hall Device and Preparation MethodSeptember 2024March 2025Allow601NoNo
18893251SYSTEMS AND METHODS FOR MACHINE LEARNING ENABLED FAULT DETECTION IN RECHARGEABLE BATTERIESSeptember 2024January 2025Allow420YesNo
18882115HYDROGEN-SENSITIVE MATERIAL RESISTANT TO HUMIDITY INTERFERENCE, SEMICONDUCTOR RESISTIVE HYDROGEN SENSOR, AND INTELLIGENT HYDROGEN SENSING SYSTEM, AND PREPARATION METHOD AND USE THEREOFSeptember 2024December 2024Allow300NoNo
18882050ELECTRONICS TESTERSeptember 2024November 2024Allow200NoNo
18846020FPGA CHIP-BASED SYSTEM AND METHOD FOR DETECTING CABLE INSULATION STATESeptember 2024February 2025Allow600NoNo
18844509ONLINE MONITORING METHOD FOR INSULATION STATE OF CABLE FOR TRANSFORMER SUBSTATIONSeptember 2024May 2025Allow810NoNo
18825571Detecting Phase Properties of Radio Frequency WavesSeptember 2024February 2025Allow610NoNo
18825561Detecting Phase Properties of Radio Frequency WavesSeptember 2024February 2025Allow510NoNo
18818596METHOD FOR CALCULATING SURFACE RELAXATION RATE OF SHALEAugust 2024September 2024Allow100YesNo
18841824MAGNETIC FIELD DETECTOR MODULEAugust 2024January 2025Allow500NoNo
18809338ATOMIC BEAM MAGNETIC RESONANCE METHOD AND SYSTEM BASED ON COMBINED SEPARATED OSCILLATORY FIELDSAugust 2024November 2024Allow300NoNo
18839405SWITCH CURRENT SENSORSAugust 2024April 2025Allow810YesNo
18806722OPTICALLY PUMPED ATOMIC BEAM APPARATUS BASED ON CURVED FOUR CONDUCTORSAugust 2024November 2024Allow300NoNo
18838852METHOD AND APPARATUS FOR MEASURING MAGNETIC FIELD INTENSITY IN HIGH-TEMPERATURE SUPERCONDUCTING MAGLEV TRANSPORTATION SYSTEMSAugust 2024January 2025Allow500NoNo
18798405ROLL MAP GENERATING DEVICE FOR MERGE-WOUND ELECTRODEAugust 2024February 2025Allow610NoNo
18794103OPTICAL-PATH FOLDING-ELEMENT WITH AN EXTENDED TWO DEGREE OF FREEDOM ROTATION RANGEAugust 2024April 2025Allow820NoNo
18792713Method 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 SignalsAugust 2024September 2024Allow200NoNo
18793584PULSE SEQUENCE FOR RESONANCE-BASED TISSUE ANALYSISAugust 2024January 2025Allow620NoNo
18791601METHOD AND DEVICE FOR INSULATION MONITORING OF A WATER-ELECTROLYSIS INSTALLATIONAugust 2024May 2025Allow1000NoNo
18789916Method and system for Photovoltaic fault monitoring, and storage mediumJuly 2024May 2025Allow920NoNo
18780524MAGNETIC PARTICLE IMAGING DEVICE BASED ON PARALLEL SCANNING OF MULTIPLE MAGNETIC FIELD FREE LINESJuly 2024October 2024Allow300NoNo
18777170FAULT DETECTION DEVICE AND METHOD FOR SUPERCONDUCTING ELECTRODYNAMIC MAGNETIC LEVITATION (MAGLEV) TRACKJuly 2024September 2024Allow200NoNo
18775913ARC FAULT CURRENT HEALTH CHECK CIRCUITJuly 2024December 2024Allow510NoNo
18774727WAFER TEST SYSTEM, PROBE CARD REPLACING METHOD, AND PROBERJuly 2024December 2024Allow500NoNo
18773289SELF-LOCKED RYDBERG ATOM ELECTRIC FIELD SENSORJuly 2024June 2025Allow1110NoNo
18727880Magnetic Field Sensor For Measuring A Direct CurrentJuly 2024January 2025Allow700NoNo
18727344ELECTRICAL IMPEDANCE MONITORING DEVICE, SYSTEM AND METHOD FOR LOCOMOTION BEHAVIORS OF CAENORHABDITIS ELEGANSJuly 2024December 2024Allow500NoNo
18765343METHOD AND DEVICE FOR WAFER-LEVEL TESTINGJuly 2024January 2025Allow700NoNo
18765676METHOD FOR DETECTING CONTACT FORCE OF PROBE CARDJuly 2024June 2025Allow1110NoNo
18765737NEURAL INTERFACE CIRCUIT FOR BIDIRECTIONAL SIGNAL TRANSMISSIONJuly 2024November 2024Allow500NoNo
18765323SMALL-SIZED FAST COLD AND HOT SHOCK TEST DEVICESJuly 2024January 2025Allow700NoNo
18764964SYSTEMS AND METHODS FOR GENERATION OF HYPERPOLARIZED MATERIALSJuly 2024April 2025Abandon1010NoNo
18762393PROBES, PROBE BLADES, TOOLS FOR PROBE BLADES, BLADE HOLDERS, AND PROBE SYSTEMS FOR ELECTRICALLY TESTING A DEVICE UNDER TESTJuly 2024April 2025Allow910NoNo
18760215DETECTION OF WATER IN OIL EMULSIONS USING SPECTRAL INDUCED POLARIZATIONJuly 2024January 2025Allow710YesNo
18760562High Frequency Resistant Nuisance Tripping GFCI and with Self-Test and End of Life (STEOL) CircuitsJuly 2024March 2025Allow820NoNo
18758764GRID RELAY FAULT DETECTIONJune 2024January 2025Allow710YesNo
18756043METHOD FOR COMPUTING AN INSULATION RESISTANCE IN AN UNGROUNDED DC POWER SUPPLY SYSTEM AT A CHANGEABLE DC LINE VOLTAGEJune 2024May 2025Allow1000NoNo
18757076METHODS AND SYSTEMS FOR REMOTE ACCESS HARDWARE TESTINGJune 2024May 2025Allow1010NoNo
18754369METHOD OF ESTIMATING A VOLTAGEJune 2024March 2025Allow810YesNo
18753845LEAD DETECTION SYSTEM FOR UNDERGROUND PIPESJune 2024June 2025Allow1210NoNo
18753853GRAPH THEORY-BASED METHOD AND DEVICE FOR LOCATING INSTABILITY FAULT SOURCE IN DIRECT-CURRENT MICROGRIDJune 2024January 2025Allow710NoNo
18751610MAGNETIC SENSOR INCLUDING MAGNETIC DETECTION ELEMENT DISPOSED ON INCLINED SURFACEJune 2024May 2025Allow1110YesNo
18751116SEMICONDUCTOR DOPING CHARACTERIZATION METHOD USING PHOTONEUTRALIZATION TIME CONSTANT OF CORONA SURFACE CHARGEJune 2024September 2024Allow300NoNo
18749527METHOD AND ELECTRIC CIRCUIT ARRANGEMENT FOR SELECTIVE INSULATION MONITORING IN A POWER SUPPLY SYSTEM HAVING ISOLABLE SUBSYSTEMSJune 2024March 2025Allow900NoNo
18748409DEVICE AND METHOD FOR MONITORING A TURN-OFF CAPABILITYJune 2024August 2024Allow200NoNo
18747604Rotating Switch Sensor For A Robotic SystemJune 2024April 2025Allow1000NoNo
18719606DEVICE AND METHOD FOR MEASURING A CONDUIT IN A SUBMERGED OR SUBTERRANEOUS ENVIRONMENTJune 2024October 2024Allow400YesNo
18740672METHOD AND SYSTEM FOR MEASURING BROADBAND IMPEDANCE OF RENEWABLE ENERGY POWER GENERATION DEVICEJune 2024August 2024Allow200NoNo
18741726SYSTEMS, DEVICES, AND METHODS FOR PERFORMING A NON-CONTACT ELECTRICAL MEASUREMENT ON A CELL, NON-CONTACT ELECTRICAL MEASUREMENT CELL VEHICLE, CHIP, WAFER, DIE, OR LOGIC BLOCKJune 2024June 2025Allow1210NoNo
18737928METHOD FOR DIAGNOSING INTERNAL LOSS MECHANISM OF SOLAR CELLJune 2024June 2025Abandon1220NoNo
18737078INTEGRATED CIRCUIT HAVING CURRENT-SENSING COILJune 2024May 2025Allow1110NoNo
18737185SENSORJune 2024December 2024Allow600NoNo
18737250SPACE TRANSFORMERS CONFIGURED TO BE UTILIZED IN A PROBE SYSTEM, PROBE SYSTEMS THAT INCLUDE THE SPACE TRANSFORMERS, AND RELATED METHODSJune 2024February 2025Allow800YesNo
18735723ABSOLUTE POSITION MEASUREMENT USING SINGLE MAGNET STRIPJune 2024May 2025Allow1110YesNo
18734706METHOD FOR SEMICONDUCTOR DEVICE INTERFACE CIRCUITRY FUNCTIONALITY AND COMPLIANCE TESTINGJune 2024May 2025Allow1100NoNo
18734307SEMICONDUCTOR DEVICE CONFIGURED FOR GATE DIELECTRIC MONITORINGJune 2024June 2025Allow1310NoNo
18731724MULTIMETER WITH A METER PROBE MODULE AND PHASING PROBE MODULE CAPABLE OF WIRELESS COMMUNICATION AND PROXIMITY MEASUREMENTSJune 2024April 2025Allow1010YesNo
18731040HOUSING AND PROBERMay 2024April 2025Allow1020YesNo
18678662DETERMINATION OF CHLORIDE CONCENTRATION IN DRILLING FLUIDSMay 2024January 2025Allow800NoNo
18677971METHOD AND DEVICE FOR MOBILE RAPID EXPLORATION OF MINERAL RESOURCESMay 2024July 2024Allow200YesNo
18677383METHODS AND EQUIPMENT FOR REDUCING POWER LOSS IN CELLULAR SYSTEMSMay 2024February 2025Allow800NoNo
18677531ELECTROMAGNETIC NON-CONTACT ONLINE METERING COUNTING AND SPEED MEASUREMENT METHOD AND DEVICE FOR STEEL WIREMay 2024November 2024Allow610NoNo
18676119HIGH GEOSTRESS FAULT SIMULATOR USING NON-SOIL ROCK MATERIALS MEDIAMay 2024September 2024Allow300NoNo
18672591BRIDGE-BASED IMPEDANCE SENSOR SYSTEMMay 2024January 2025Allow800NoNo
18672231SOIL MOISTURE AND NUTRIENT SENSOR SYSTEMMay 2024December 2024Allow700NoNo

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
149
Examiner Affirmed
92
(61.7%)
Examiner Reversed
57
(38.3%)
Reversal Percentile
75.7%
Higher than average

What This Means

With a 38.3% 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
713
Allowed After Appeal Filing
297
(41.7%)
Not Allowed After Appeal Filing
416
(58.3%)
Filing Benefit Percentile
88.7%
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, 41.7% 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 2858 - Prosecution Statistics Summary

Executive Summary

Art Unit 2858 is part of Group 2850 in Technology Center 2800. This art unit has examined 25,965 patent applications in our dataset, with an overall allowance rate of 85.8%. Applications typically reach final disposition in approximately 27 months.

Comparative Analysis

Art Unit 2858's allowance rate of 85.8% places it in the 81% 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 1.32 office actions before reaching final disposition (in the 13% percentile). The median prosecution time is 27 months (in the 63% 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.