USPTO Art Unit 2849 Prosecution Statistics

Art Unit Information

Art Unit: 2849
Group: 2840
Tech Center: 2800
Total Cases: 4,658
Last Active: June 2025

Recent Applications

Detailed information about the 100 most recent patent applications.

Application NumberTitleFiling DateDisposal DateDispositionTime (months)Office ActionsRestrictionsInterviewAppeal
19243685DUAL FREQUENCY LASER FOR DUAL MODE OPTICAL LATTICE ATOMIC CLOCKJune 2025August 2025Allow200NoNo
19197531SIMPLE OSCILLATOR WITH HOLDOVERMay 2025July 2025Allow300NoNo
19088388WIRELESS POWER TRANSMISSION METHOD AND DEVICE THEREFORMarch 2025August 2025Allow510NoNo
19079164ENVELOPE-DETECTOR-LESS FORWARD DATA RECEIVING DEVICEMarch 2025February 2026Allow1100NoNo
19047758RESISTOR VOLTAGE-BEARING TYPE ON-STATE VOLTAGE DROP MEASUREMENT CIRCUIT FOR JUNCTION TEMPERATURE MONITORING AND MONITORING METHODFebruary 2025November 2025Allow900NoNo
19043166Wireless Power Transfer Systems for Kitchen AppliancesJanuary 2025February 2026Allow1300NoNo
19038304MAGIC STATE FACTORY CONSTRUCTIONS FOR PRODUCING CCZ AND T STATESJanuary 2025February 2026Allow1300NoNo
18997384POWER RECEIVER ELECTRONICSJanuary 2025February 2026Allow1300NoNo
19030823Wireless Connector SystemJanuary 2025January 2026Allow1200NoNo
19020446MULTI-LAYERED TRIBOELECTRIC GENERATOR FOR ELECTROCEUTICALJanuary 2025December 2025Allow1100NoNo
19012624UNINTERRUPTIBLE POWER SUPPLYJanuary 2025February 2026Allow1300NoNo
18881037METHOD AND CIRCUIT FOR CURRENT CONTROLJanuary 2025May 2025Allow500NoNo
19003012REFUSE VEHICLE WITH A SERVICE STEP ABOVE HIGH VOLTAGE POWER DISTRIBUTION UNITDecember 2024February 2026Allow1400NoNo
19003880Wireless Power Transfer System With Data Versus Power Priority OptimizationDecember 2024August 2025Allow810NoNo
19002032OSCILLATORDecember 2024February 2026Allow1400NoNo
18991779METHOD FOR COMPENSATING FOR FREQUENCY SHIFTS CAUSED BY VARIATIONS IN ENVIRONMENTAL PARAMETER OF ATOMIC CLOCKDecember 2024February 2025Allow200NoNo
18991897BACKUP APPARATUS AND POWER CONVERTERDecember 2024December 2025Allow1200NoNo
18877823OSCILLATING CIRCUIT AND ELECTRONIC DEVICEDecember 2024January 2026Allow1300NoNo
18985428OSCILLATOR CIRCUITDecember 2024October 2025Allow1000NoNo
18981567GATE VOLTAGE BOOTSTRAP SWITCHING CIRCUITDecember 2024March 2026Allow1500NoNo
18875146WIDE-RANGE POWER-REGULATION METHOD FOR WIRELESS POWER RECEIVING UNITS BY USING HYBRID MULTI-LEVEL TOPOLOGIESDecember 2024July 2025Allow700NoNo
18875038INJECTION-LOCKED OSCILLATORDecember 2024March 2026Allow1510NoNo
18978742CIRCUIT FOR PERFORMING EXPONENTIAL TEMPERATURE COMPENSATION IN AN OSCILLATORDecember 2024January 2026Allow1400NoNo
18976089PORTABLE POWER STATIONDecember 2024January 2026Allow1300NoNo
18872941SUPERCONDUCTING QUANTUM CIRCUITDecember 2024March 2026Allow1500NoNo
18971202MICROCONTROLLER AND CONTROL DEVICEDecember 2024January 2026Allow1300NoNo
18971921COIL COMPONENTDecember 2024March 2026Allow1510NoNo
18705873METHOD AND DEVICE FOR SLOT GENERATION IN WIRELESS POWER TRANSMISSION SYSTEMDecember 2024February 2026Allow2210NoNo
18968481REDUNDANT POWER SUPPLY SYSTEMDecember 2024February 2026Allow1410NoNo
18968228DIGITAL PHASE INTERPOLATORDecember 2024February 2026Allow1500NoNo
18967666MULTI-VOLTAGE DRIVING CONTROL METHOD, APPARATUS, AND DEVICE, AND COMPUTER-READABLE STORAGE MEDIUMDecember 2024April 2025Allow510NoNo
18966551Circuit Apparatus And OscillatorDecember 2024February 2026Allow1510NoNo
18964719COMBO CIRCUIT WITH ELECTROSTATIC DISCHARGE PROTECTIONDecember 2024January 2026Allow1310YesNo
18964431CLOCK CONTROL DEVICE AND CLOCK CONTROL METHOD FOR SERIAL PERIPHERAL INTERFACENovember 2024March 2026Allow1500NoNo
18961804SYSTEMS AND METHODS FOR A HIGH-SENSITIVE OSCILLATORNovember 2024February 2026Allow1400NoNo
18959909INDEPENDENT POWER CONTROL FOR INTEGRATED CIRCUIT (IC) CHIPSNovember 2024January 2025Allow200NoNo
18958435RESONANCE DEVICENovember 2024October 2025Allow1000NoNo
18957985VOLTAGE CONTROLLED OSCILLATOR (VCO) CIRCUITSNovember 2024February 2026Allow1510YesNo
18959540COIL COMPONENTNovember 2024November 2025Allow1200NoNo
18867889DIAMOND-BASED ATOMIC CLOCKNovember 2024June 2025Allow700NoNo
18955593SYSTEM AND METHOD FOR INTELLIGENT STATIC TRANSFER SWITCHINGNovember 2024February 2026Allow1500NoNo
18953586WIRELESS POWER TRANSMISSION DEVICENovember 2024March 2026Allow1600NoNo
18952184BUILT-IN SELF-TEST SYSTEM AND METHOD FOR CRYSTAL OSCILLATOR AMPLIFIERNovember 2024October 2025Allow1100NoNo
18952380WIRELESS POWER RECEPTION DEVICE AND WIRELESS COMMUNICATION METHODNovember 2024February 2026Allow1510NoNo
18950279Aircraft power supply system and associated aircraftNovember 2024February 2026Allow1510NoNo
18947486METHOD AND CONTROLLER FOR CONTROLLING A POWER CONVERTER CONNECTED TO A GRIDNovember 2024March 2026Allow1610NoNo
18865296INVERTER CIRCUIT AND WIRELESS POWER TRANSFER CIRCUITNovember 2024January 2026Allow1410NoNo
18943436OSCILLATION CIRCUIT AND ELECTRONIC DEVICENovember 2024December 2025Allow1300NoNo
18942696ARTIFICIAL INTELLIGENCE ALGORITHM-BASED WIRELESS CHARGING SYSTEM CAPABLE OF HIGH-SPEED RESPONSE TO ENVIRONMENTAL CHANGESNovember 2024January 2026Allow1510NoNo
18940836RING VOLTAGE CONTROLLED OSCILLATOR AND ELECTRONIC CIRCUITS WITH THE RING VOLTAGE CONTROLLED OSCILLATORNovember 2024February 2026Allow1610NoNo
18940679SOLAR FORECASTING FOR NETWORKED POWER PLANTSNovember 2024March 2026Allow1610NoNo
18863653HIGH-FREQUENCY CRYSTAL OSCILLATOR BASED ON AUTOMATIC PHASE ERROR CORRECTIONNovember 2024March 2026Allow1600NoNo
18938290ULTRASONIC OSCILLATOR ELEMENT AND ULTRASONIC TRANSDUCER DEVICENovember 2024October 2025Allow1100NoNo
18933044SYSTEMS FOR OPERATING A LC-VCOOctober 2024October 2025Allow1100NoNo
18933854EMERGENCY DRIVER AND INTELLIGENT MODULE FOR THE EMERGENCY DRIVEROctober 2024January 2026Allow1410NoNo
18932398AUTONOMOUS VEHICLE FOR TEMPORARILY POWERING ELECTRIC VEHICLES (EVS) ON THE ROADOctober 2024March 2026Allow1610YesNo
18931818WIRELESS POWER SUPPLY APPARATUSOctober 2024January 2026Allow1510NoNo
18930042WORK SYSTEMOctober 2024February 2026Allow1610NoNo
18929917Solid-State Transformer for Mitigation of Common Mode InsultsOctober 2024October 2025Allow1210YesNo
18929257MULTI-MASTER CONTROL CIRCUITOctober 2024March 2026Allow1600NoNo
18929409MODIFIED CONTROL LOOP IN A DIGITAL PHASE-LOCKED LOOPOctober 2024February 2026Allow1500NoNo
18928308SEMICONDUCTOR DEVICEOctober 2024February 2026Allow1600NoNo
18860718ENERGY MANAGEMENT SYSTEMOctober 2024October 2025Allow1200NoNo
18859661Power Supply Control Device and Method for Controlling SameOctober 2024January 2026Allow1510YesNo
18925881POWER RECEIVING DEVICE, POWER TRANSMITTING DEVICE, METHOD FOR THE SAME, AND STORAGE MEDIUMOctober 2024January 2026Allow1510NoNo
18924161POWER TRANSMISSION APPARATUS, CONTROL METHOD EXECUTED BY POWER TRANSMISSION APPARATUS, AND STORAGE MEDIUMOctober 2024January 2026Allow1510YesNo
18918748SEMICONDUCTOR BURN-IN MACHINE POWER REGULATOR HAVING MULTIPLE POWER MODESOctober 2024March 2026Allow1710YesNo
18917124POWER SUPPLY DEVICE FOR AIR MOBILITY AND METHOD THEREOFOctober 2024March 2026Allow1710NoNo
18918040MULTI-CORE VCO WITH ROBUST UNWANTED MODE SUPPRESSION AND CIRCULAR COIL TOPOLOGYOctober 2024February 2026Allow1610YesNo
18916089PHASE DETECTION CIRCUIT, AND CLOCK GENERATION CIRCUIT AND METHOD USING THE SAMEOctober 2024February 2026Allow1600NoNo
18914664TWO POINT FREQUENCY SEARCH BASED PLL CONTROLOctober 2024February 2026Allow1610NoNo
18912412Atomic Clock System and Frequency Stabilization DeviceOctober 2024February 2026Allow1610YesNo
18912535MECHANICAL RENEWABLE GREEN ENERGY PRODUCTIONOctober 2024March 2026Allow1710NoNo
18908112LATCH CURRENT LIMITER CIRCUIT FOR SPACECRAFT AND SPACECRAFT POWER SYSTEM USING THE SAMEOctober 2024February 2026Allow1710NoNo
18907597VOLTAGE REGULATOR AND SEMICONDUCTOR DEVICEOctober 2024January 2026Allow1600NoNo
18907783POWER CONVERSION SYSTEM HAVING SPREAD SPECTRUM AND PHASE SHIFTING MECHANISMSOctober 2024February 2026Allow1600NoNo
18903281BULK ACOUSTIC WAVE RESONATORS HAVING CONVEX SURFACES, AND METHODS OF FORMING THE SAMEOctober 2024February 2026Allow1710NoNo
18899355INITIAL CONTROL VOLTAGE GENERATING CIRCUIT FOR VOLTAGE-CONTROLLED OSCILLATOR AND PHASE-LOCKED LOOP CIRCUIT WITH THE INITIAL CONTROL VOLTAGE GENERATING CIRCUITSeptember 2024February 2026Allow1610NoNo
18900081GATE DRIVING DEVICESeptember 2024January 2026Allow1600NoNo
18851063CRYSTAL OSCILLATOR BASED ON DUTY RATIO MEASUREMENTSeptember 2024May 2025Allow800NoNo
18851131SUPERCONDUCTING QUANTUM CIRCUITSeptember 2024March 2026Allow1810NoNo
18897120Circuit Device And Real-Time Clock DeviceSeptember 2024February 2026Allow1710NoNo
18895564Distributed Control Platform for a Motor VehicleSeptember 2024February 2026Allow1710NoNo
18896819SPREAD SPECTRUM CLOCK GENERATION CIRCUITSeptember 2024March 2026Abandon1710NoNo
18895881ELECTRICAL LINE, A COIL AND AN INDUCTIVE POWER TRANSFER DEVICESeptember 2024January 2026Allow1610YesNo
18850045A POWER SOURCE ASSEMBLYSeptember 2024February 2026Allow1610NoNo
18892957INTEGRATED CIRCUIT GLITCH DETECTIONSeptember 2024January 2026Allow1600NoNo
18891567SOLAR STEPLESS DIMMING LAMPSeptember 2024March 2026Abandon1810NoNo
18847550BIAS CIRCUIT, POWER ON RESET CIRCUIT, AND MONITORING SYSTEMSeptember 2024January 2026Allow1600NoNo
18885866High-Speed Hardware-Based DVFS System Using Frequency Lock Loop and On-Die Voltage ControllerSeptember 2024November 2025Allow1400NoNo
18847628OSCILLATOR CIRCUITSeptember 2024January 2026Allow1600NoNo
18886224SWITCHSeptember 2024February 2026Allow1700NoNo
18886420VOLTAGE CONTROLLED OSCILLATOR AND METHODSeptember 2024February 2026Allow1710NoNo
18884990METHOD AND APPARATUS FOR MAINTAINING COMMUNICATION PERFORMANCE IN CORRESPONDENCE WITH INTERNAL TEMPERATURE IN ELECTRONIC DEVICESeptember 2024January 2026Allow1600NoNo
18884055FREQUENCY GENERATING DEVICE AND OPERATION METHOD THEREOFSeptember 2024November 2025Allow1400NoNo
18829358METHOD AND DEVICE FOR LABELING TRANSIENT VOLTAGE STABILITY SAMPLES IN POWER GRID BASED ON SEMI-SUPERVISED LEARNINGSeptember 2024February 2025Allow500NoNo
18828071TRANSFORMER-BASED DISTRIBUTED MULTICORE OSCILLATOR AND INTEGRATED CIRCUIT AND TERMINAL THEREOFSeptember 2024October 2024Allow200NoNo
18828782VOLTAGE-CONTROLLED OSCILLATOR (LC VCO) AND METHOD OF OPERATION THEREOFSeptember 2024February 2026Abandon1710NoNo
18825616ULTRA-LOW POWER TIMING CIRCUIT WITH PLL LOCKINGSeptember 2024September 2025Allow1200NoNo
18825640HIGH PRECISION ON-CHIP RC OSCILLATORSeptember 2024February 2026Allow1710NoNo

Appeals Overview

This analysis examines appeal outcomes and the strategic value of filing appeals for art-unit 2849.

Patent Trial and Appeal Board (PTAB) Decisions

Total PTAB Decisions
50
Examiner Affirmed
26
(52.0%)
Examiner Reversed
24
(48.0%)
Reversal Percentile
92.7%
Higher than average

What This Means

With a 48.0% 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
102
Allowed After Appeal Filing
45
(44.1%)
Not Allowed After Appeal Filing
57
(55.9%)
Filing Benefit Percentile
92.8%
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, 44.1% 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 2849 - Prosecution Statistics Summary

Executive Summary

Art Unit 2849 is part of Group 2840 in Technology Center 2800. This art unit has examined 4,658 patent applications in our dataset, with an overall allowance rate of 94.3%. Applications typically reach final disposition in approximately 18 months.

Comparative Analysis

Art Unit 2849's allowance rate of 94.3% places it in the 93% 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 2849 receive an average of 1.28 office actions before reaching final disposition (in the 11% percentile). The median prosecution time is 18 months (in the 97% 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.